Best Plastic Casting Molds in 2026

Daisy
Last Updated: Jul 17, 2026

At a Glance: Our Top Picks for Plastic Casting Molds

RESINWORLD Set of Large + Medium + Small 3D Skull Resin Molds, Flexible Clear Silicone Skull Head Molds, Silicone Molds for Resin, Clay, Candle Wax Casting, Halloween Home Decoration
#TOP1
Resinworld Set Of Large + Medium + Small
9.6
PM SCORE
RESINWORLD Set of 4", 3", 2", 1.5", 1", 0.5" Clear Silicone Cube Molds, Large Deep Square Epoxy Resin Mold, Transparent Cube Silicone Molds for Resin Casting
#TOP2
Resinworld Set Of 4", 3", 2", 1.5", 1",
9.6
PM SCORE
RESINWORLD Super Large Clear Silicone Pyramid Molds for Resin, 2Pcs Inner Pyramid Silicone Molds + 1Pcs Plastic Frame, Shiny Resin Mold for Chakra Orgonite Orgone Pyramid DIY
#TOP3
Resinworld Super Large Clear Silicone Pyramid Molds For
9.6
PM SCORE

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Summary of the Best Plastic Casting Molds of 2026

Market Overview
Plastic Casting Molds Reviewed
  • Reviews Analyzed: 1528 Items
  • PM Avg. Rating: 7.3 / 10
14 Products Evaluated
  • Highest Price: $39.99
  • Lowest Price: $8.49
  • Avg. Price: $20.20

Resinworld Set Of Large + Medium + Small 3D Skull Resin Molds, Flexible Clear Silicone Skull Head Molds, Silicone Molds For Resin, Clay, Candle Wax Casting, Halloween Home Decoration

RESINWORLD
RW-MO-069-0930-A
4.00 X 4.00 X 1.50 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ResinWorld Official 9.93

Features

【Set of Large Medium Small 3D Skull Silicone Molds】: Comes in a size to fit all your resin needs! These skull molds are good for making goth gothic resin craft for home Halloween Decoration.

【Eco-friendly Flexible CLEAR Silicone Molds】: These skull molds are made from premium transparent silicone. Crystal clear silicone lets you see exactly what you're doing as you're working. The finished pieces are more shiny glossy than others made by HDPE white molds. Clear silicone molds are also more flexible, durable, easy to demold, not easy to be ripped.

【Application】: These skull silicone casting molds are compatible with most casting material such as epoxy resin, UV resin, candles, wax, concret clay etc.

【After Sales】: We know how important the quality is to you. If there is any issue with our resin silicone molds, you are always welcomed to contact us, and we will try our best to give you a satisfactory solution.

【Package Include】: Set of large medium small (4'', 3'', 2'') skull silicone molds only! The finished pieces and other accessories are NOT included!

Resinworld Set Of 4", 3", 2", 1.5", 1", 0.5" Clear Silicone Cube Molds, Large Deep Square Epoxy Resin Mold, Transparent Cube Silicone Molds For Resin Casting

RESINWORLD
RW-MO-052-0118
4.00 X 4.00 X 4.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ResinWorld Official 9.93

Features

【Transparent Cube Molds with Sharp Corners】: All surfaces inside the mold are smooth and shiny - no more sanding/polishing your finished piece!

【Premium CLEAR SILICONE Material】: These deep square cube molds are made from premium transparent silicone. Crystal clear silicone lets you see exactly what you're doing as you're working. The finished pieces are more shiny glossy than others made by HDPE white molds. Clear silicone molds are also more flexible, durable, not easy to be ripped.

【Wide Range of Application】: These cube epoxy casting molds can be used to make resin jewelry, resin keychain pendant, resin night light, paperweight, resin block, Christmas wedding table home decoration, soap Loaf candle DIY

【Package Include】: 6 size resin cube silicone mold only! (4inch, 3inch, 2inch, 1.5inch, 1inch, 0.5inch) The finished pieces and other accessories are not included!!!

【After Sales】: We know how important the quality is to you. If there is any issue with our resin silicone molds, you are always welcomed to contact us, and we will try our best to give you a satisfactory solution.

Resinworld Super Large Clear Silicone Pyramid Molds For Resin, 2Pcs Inner Pyramid Silicone Molds + 1Pcs Plastic Frame, Shiny Resin Mold For Chakra Orgonite Orgone Pyramid Diy

RESINWORLD
RW-MO-057-0430
5.91 X 3.94 X 1.97 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ResinWorld Official 9.93

Features

【Premium CLEAR SILICONE Material】: ResinWorld large pyramid molds are made from premium clear silicone. Crystal clear silicone lets you see exactly what you're doing as you're working. The finished pieces are more shiny than others made by HDPE white molds. Clear silicone molds are also more flexible, durable, not easy to be ripped.

【XL Pyramid Resin Molds】: This silicone pyramid molds kit includes 2 pack clear silicone inner molds and 1 pcs plastic frame. Pyramid molds size: Height:16cm/6.5inch; Base:15.5cm/6inch x 15.5cm/6inch.

【Wide Range of Application】: You can make any size below 16cm artworks. Pyramid mould great for DIY making resin jewelry, chakra orgonite orgone pyramid, paperweight, or other craft accessories home decoration.

【Warm Tips】: Be careful to place the silicone mold insert into the plastic frame accurately, make sure all sides flush. Fill the entire mold with about 43oz of resin. If you plan to make a huge pyramid, do divide your casting process into several times. Warning: Do NOT heat during the curing process, it will produce a lot of bubbles.

【After Sales】: We know how important the quality is to you. If there is any issue with our resin silicone molds, you are always welcomed to contact us, and we will try our best to give you a satisfactory solution.

Resinworld Set Of 4", 3", 2.5", 2", 1.7", 1.3", 0.9" Clear Silicone Sphere Molds, Large 3D Seamless Sphere Silicone Molds For Resin Casting, Round Ball Orbs Epoxy Resin Mold For Jewelry, Soap, Candle

RESINWORLD
RW-MO-050-1117
3.94 X 3.94 X 1.97 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ResinWorld Official 9.93

Features

【3D Sphere Resin Molds without Trancation】: Easy set up - no tape or screws necessary. Just mix your casting material and pour, you will get a complete seamless resin sphere. There's no ring around the middle like some of those other spheres, no more sanding/polishing your finished piece!

【Premium CLEAR SILICONE Material】: These round ball molds are made from premium transparent silicone. Crystal clear silicone lets you see exactly what you're doing as you're working. The finished pieces are more shiny glossy than others made by HDPE white molds. Clear silicone molds are also more flexible, durable, not easy to be ripped.

【Wide Range of Application】: These sphere/orbs silicone molds can be used to make resin jewelry, resin knobs, resin sphere ornaments, resin keychain pendant, resin night light, paperweight, planet crystal ball, Christmas wedding home decoration, soap candle DIY.

【Package Include】: 7 size resin sphere mold only! (4inch, 3inch, 2.5inch, 2inch, 1.7inch,1.3inch, 0.9inch) The finished pieces and other accessories are not included!!!

【After Sales】: We know how important the quality is to you. If there is any issue with our resin silicone molds, you are always welcomed to contact us, and we will try our best to give you a satisfactory solution.

Funshowcase Square Baking Silicone Mold For Cake Teacake Chocolate Desserts Cheesecake Cornbread Brownie Blancmange Pudding Soap Candle Making Resin Epoxy Casting Wax Crafting Projects, 6-Cavity

FUNSHOWCASE
1385
8.50 X 1.85 X 1.06 Inches
0.20 Kilograms
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FUNSHOWCASE 9.85

Features

The bite size square candy mold is made from 100% European grade silicone; stronger, more flexible and durable to maintain its original shape and non-stick quality through more uses.

Make rice krispie treats, ganache, fruit custard, chocolate truffles, snacks, granola, keto caramels, fudge, fat bombs, brownie, peanut butter cup, whiskey ice cube, Loaf, bread, flower jelly, gelatin art cakes, scented wax melts, lotion bars, soap, aromatherapy shower fizzers, bath bombs, petri resin jewelry, polymer clay and more.

Dimensions ( Approximate.) 21.6x14.7x2.7cm, 6 cells. Each cell 5x5x2.4cm, 65ml (13 tsp, 2.2oz ) per hole

Pinch test passed. No white fillers when pinched or twisted. No chemical coatings. Pure, premium quality food-grade silicone. Meets US FDA and EU LFGB safety standards. BPA, PVC and phthalate free. Easy to use mould very flexible and easy to clean, can be used in oven, dishwasher, refrigerator etc. Used within the temperature between -40~220 centigrade

As silicone material is so versatile, the list for types of materials that can be used to create the moulds, is endless, such as Gum paste, Jelly, Muffin, Fondant, Sugarpaste, Melted Chocolate, Wax, Ice,soap, resin,and All types of Moulding Clays Also great to use it as tray to make juice to ice

#TOP6

Funshowcase Cactus And Succulent Plant Silicone Molds Set For Epoxy Resin Soap Candle Wax Polymer Clay Concrete Plaster Fondant Cake Decor Chocolate With Beginner Tutorials

FUNSHOWCASE
P1
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FUNSHOWCASE 9.85

Features

Cacti and succulent plant molds. Assorted shapes_rosettes, bun, echeveria, sedum, sempervivum, graptoveria, tiger jaws succulent & barrels, columns, globes cactus. Heights are around 1-3inch.

For cake decorating, cupcake topper, bath bomb, wax, candle, polymer clay craft, plaster cast, DIY resin casting, miniature garden etc. Frame as wall planter; tropical party favors; terrariums accent; fake floral arrangement decoration; homemade soap; Dessert treats such as mousse, ice cream, jello.

Use with a wide range of edible and non edible materials. For cake/desserts decoration: gum paste, jelly, marzipan, fondant, sugarpaste, melted candy & chocolate, ice, isomalt and more

For crafts and hobbies: modelling clay(air clay, paper clay, resin clay, polyclay, polymer clay, salt clay, metal clay, liquid clay etc.), resin(epoxy resin, rethane resin, uv resin, polyester resin), concrete, cement, plaster, hot glue, soap, candle, wax, mix media and more.

Food Grade. Food and Non Food material should use separately. Wash and boil before use, especially for food. Easy to use mold very flexible and easy to clean, can be used in oven, dishwasher, refrigerator etc. Can be used within the temperature between -40~220 centigrade. Color is translucent white. The mold is designed a bit harder, so the shape comes out will not deform.

Fineinno 6 Pcs Resin Fillers Sea Creatures, Realistic Ocean Animals With Shark Whales Sea Turtle Dolphin, 3D Sea Animal Figures For Epoxy Resin Mold Filling Materials

FINEINNO
M2214
3.46 X 0.63 X 0.98 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Cute Chic 9.84

Features

What You Get: The package comes with 6 pcs sea creatures resin fillers, including great white shark, manta ray, humpback whale, black sea turtle, dolphin, blue whale.

3D Ocean Animals: These marine life models are 5.4~9.6 cm in length and each weighs 12 g. The solid 3d filler can be placed anywhere you want, they are perfect as filling materials for resin crafts.

Premium Material: FineInno 3D sea animal figures made by high quality silicone material, sturdy and durable, with a smooth finish and won't fade easily. Bring life to your resin marine landscaping crafts.

Realistic Simulation Details: These sea animal models with high realistically detailed appearance, their uniquely molded textures and richly painted details make the animals vivid.

Grat Gift: These realistic sea animal models are ideal gifts for Christmas, New Years, Birthdays and more. Whether for resin craft enthusiasts or mold collectors.

Jillpes, Dragon Silicone Molds For Resin Casting And Polymer Clay, Animal Fondant Cake, Moulds For Chocolate, Gummy, Soap, Jewelry Making, White, 5.5X3.34X0.7 In, Dragon Silicone Mold J04272021

JILLPES
J04272021
5.50 X 3.34 X 0.70 Inches
0.36 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Jillpe home 4.81

Features

Food grade silicone dragon molds for resin and cake

Mold size: around 5.5x3.34x0.7 inch (12x8x1.5 cm)

Silicone molds for resin casting: epoxy resin molds silicone material, also available for DIY craft with clay, soap, wax

Fondant molds for dragon cake topper, cake decoration, chocolate, candy, fudge, jelly, gummy making

The soft drgon mold is reusable and washable with water. Available in temperature -40 to 220 degree C (-40 to 428 degree F)

Suitable for anyone who likes DIY craft and food. Enjoy the happy hours with your friends and family

3 Super Large Clear Silicone Pyramid Molds For Resin, 3Pcs 4.7''6''7.5'' Inner Pyramid Silicone Molds + 1Pcs Plastic Frame, Silicone Resin Molds For Diy Orgonite Orgone Pyramid, Orgonite Jewelry

AOEDEO
1
6.50 X 6.50 X 5.98 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
AOEDEO 8.27

Features

3 pcs Large Pyramid Molds - This silicone pyramid molds kit includes 3Pcs Inner Pyramid Silicone Molds and 1Pcs Plastic Frame. Pyramid molds size:Height:16cm/6.5 inch. 13cm/5 inch. 10.3cm/4 inch, Base:15.5cm/6inch x 15.5cm/6inch. 13cm/5inch x 13cm/5inch. 10.3cm/4inch x 10.3cm/4inch.

High Transparent Silicone - Our Pyramid Silicone mold is made with quality durable silicone by advanced techniques. The finished product is precise, high transparency, flexible and easy take off from the mold. The finished pieces are more shiny than others made by HDPE white molds.

Easy To Demold and Smooth Finish - This mold is easy to remove and leaves no lines or blemishes. Leaves a smooth finish on Pyramid. release spray or mild soapy water may help demold easily.

Wide Range of Application - You can make any size orgone pyramid smaller than 18cm 15cm 12cm. Orgone Casting Pyramid Mold great for DIY making resin jewelry, chakra orgonite orgone pyramid, paperweight, or other craft accessories home decoration.

Warm Tips - 1. Carefully place the silicone mold insert accurately into the plastic frame, making sure all sides are flush. 2. For layers of more than two inches, pour a layer, then let the previous layer completely cool before pouring the next layer. Divide your casting process into several times. 3.Do not use a torch/lighter to remove bubbles.

#TOP10
Best For Art

Benospace 5 Pcs Flower Polymer Clay Molds 3D Silicone Mold For Jewelry Making Small Rose Daisy Floral Resin Casting Molds For Diy Nail Art Earrings Decoration Manicure Making Tools Craft Supplement

BENOSPACE
235
0.10 X 0.10 X 0.10 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
BENOSPACE 8.21

Features

【Package Content】 - You will receive 5 different styles of clay silicone molds, with a rich quantity and style to meet your daily needs and replacement needs. You are also happy to share with others.

【Mixed Flower Shapes】 - Polymer clay molds are designed with different types of flower shapes, with many small flowers on the surface of each mold, such as daisy shapes, white camellia shapes, and rose shapes. During use, the flowers can be removed after the clay has dried, so that they are not easily deformed.

【High quality material】 - Polymer clay jewelry molds are made of high-quality silicone, which is soft, smooth, fractured, and resistant to high temperatures. You can put the mold and clay together in the oven, providing you with a good long-term use experience.

【Widely used 】- Silicone clay jewelry molds can not only be used for making keychains, nails, earrings, rings, necklaces, and other jewelry crafts, but also for making candy, cookies, and cake decorations, creating unique crafts.

【Enjoy DIY】-The silicone flower mold is very suitable for friends and family to play together and have a pleasant DIY time. It can also be given as a gift to your family, friends, classmates, colleagues, and other people who enjoy making handicrafts. This mold is the ideal choice for DIY beginners and skilled professionals.

#TOP11

Wide Bracelet Diy Crystal Jewelry Casting Molds Silicone Resin Jewelry Molds Craft Molds For Pendant Key Chain Gem Bracelet

G.G.W
DE-SHHJ-KBRACELET-MD1003_69MM
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
S First Dream 5.78

Features

Size: Width 0.98",Diameter 2.72"

Notice: Without Jewels

Material: Silicone(Translucent White)

Usage: Safe use in Microwave, Oven, Refrigerator, Freezer and Dishwasher. Temperature from -104°F to +446°F(-40°C to +230°C).

Flexible & Non-stick:This flexible silicone mold provides a non-stick surface so you can easily pop out your handmade stuff after it completely cools.

Gigicloud Resin Mold For Vase, 3-In-1 Silicone Storage Box Mold With 3-Slot Reusable Diy Vase Silicone Mold Epoxy Resin Casting Molds For Pen Holder Cosmetic Make-Up Brushes Containers,White

GIGICLOUD
DNIGHYR4-FQZDN_ZR2T80UD-0111-WX
4.72 X 4.72 X 4.33 Inches
271.00 Grams
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
jiayouwuhan 9.22

Features

✔【High Quality Material】Made of food-grade silicone, the outer surface is smooth, mirror inner surface, safe and durable to use, feels soft and comfortable.It is reusable and will return to its original shape if pulled or folded.A suitable temperature range is -40 to +230 °C (-40 to 446 °F).

✔【Unique Mold Design】The unique silicone mold design combines function and beauty. This epoxy cast mold includes 3 slots that can be used as a pen holder, makeup brush container and jewelry storage. Our cool silicone molds can also be used to make clay crafts, flower projects, and more.

✔【Easy demoulding】 After the resin is completely cured, the workpiece can be easily demolded due to the mirror surface inside, without sticking or tearing, while maintaining the shape of the mold. Beginners can also master the tricks of operation.

✔【Enjoy the DIY Fun】 You can add some dried flowers, leaves, glitter powder, mica powder to make more versatile gifts for family, friends and loved ones, or use it for fun family time and create amazing resin crafts.

✔【Widely Usage】Perfect for making pen holders, makeup brush holders, flower pots, mugs and home decorations.Enjoy creating with your imagination, perfect tool for DIY crafts, create amazing resin crafts.

10 Pcs Geometric Candle Mold, Unique Candle Molds For Candle Making, Epoxy Mold For Diy Desk Decor, Home Table Romantic Decoration(White)

NGANHWEI
4532563204--64169554
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Alabohuke 9.65

Features

SCENTED CANDLE MOLDS: We offer 10 multiple both clearly visible and stylish. The detailed shapes are only on the interior. And the molds have flat bottoms which mean they sit nice and flat no matter how full they are. The pieces come out with highly visible 3D relief and a pretty look. Great for making candles and wax melt. When your succulent wax melted, your bathrooms, living rooms or office will be full of light, fresh scent.

DURABLE MATERIAL: Our mold made of high quality silicone, good flexibility and durable, could create clear shape. Compatible with most resins or other casting materials. Washable and reusable

VERY SUITABLE FOR DIY: Simply pour your favorite ingredients in the mold, and keep the ingredients static until completely formed. Our silicone molds for candles offers ​a non-stick surface that allows the goods to pop right out with a little push from the bottom.

MULTI-PURPOSE: Not only candles, our cool silicone mold also could be used to make soap, ice, clay craft, floral project and more. Very suitable for making decor for home, office, shop, birthday, wedding, baby shower, party and more

CHIC GIFT: It would be a wonderful choice to make unique handmade candle or other project and give it to friends or family as Thanksgiving, Christmas, birthday, housewarming, anniversary or holiday gift, to express your best wishes and love.

Oval + Rectangle Silicone Tray Molds For Epoxy Resin, Diy Storage Container Casting Resin Serving Board Mold With Edges For Jewelry Holder Home Decoration Crafts (White)

CXOYLL
001
10.00 X 7.00 X 0.98 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
yanxinghua 6.29

Features

【DIY Tray Mold for Resin】- This tray mold are compatible with epoxy resin and casting resin materials, NOT for coating resin. Add some resin pigment, resin dye, and embed different kinds of embellishments or fillers, DIY your unique resin tray with our epoxy resin molds, it will look fantastic over the kitchen table or in any place you want to place it. And you can take the finished products to store earrings/ rings/ coins/ keys and other small items.

【Reusable Silicone Tray Molds, Easy to Demold & Clean】- 1. The tray mold is made of high quality silicone material, which is soft and flexible, and you can apply them repeatedly in daily life; 2. After the epoxy or casting resin is fully dried, please twist the silicone mold and release your finished work out. And can be easily cleaned with water.

【Oval & Rectangle Resin Tray Molds with Edge】- Package Includes: 1 x Rectangle Tray Mold (26x18x2.5 cm/ 10.23x7x0.98 inch), 1 x Oval Tray Mold (18x9.5x1.6 cm/ 7x3.74x0.63 inch); Different shape can meet you more needs. You can customize your own unique style of the rolling tray using this resin mold.Great for jewelry and accessories management on the table.

【Multi-Function Serving Tray Mold】- The finished DIY resin tray will have endless uses. It can work as a tea tray/ coffee tray/ candy tray/ bathroom storage tray/ living room home or office countertop decorative tray and for all the uses you can imagine. And you can make your own resin tray according to your own preference, like adding colorful sequins, dried flower, shiny items and other small decors (not included) into the mold.

【DIY as you Want, Creative Gifts for Family & Friends】- You can DIY resin tray with your kids and friends with various personalised options such as colors/ put different flowers/ Shell decorations/ decorating at the middle of resin. This promote parent child cooperation and leave deep family memories through, you also can use it at kitchen/ bathroom/ study or any place you want, and also a warm gift on Christmas/ new year/ Thanksgiving Day/ birthday/ housewarming/ etc.

Top 10 casting molds Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Resinworld 4
Funshowcase 2
Aoedeo 1
Benospace 1
Cxoyll 1
Fineinno 1
G.g.w 1
Gigicloud 1
Jillpes 1
Nganhwei 1

Top 10 casting molds Brands Pie Chart


We've carried out a comprehensive analysis of 1,528 reviews on casting molds, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select casting molds priced around $20.20, with top brands including and

Our team of expert editors reviewed these high-quality items and handpicked the top 14 casting molds for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .

We are dedicated to assisting our users in finding the right molds Products based on their needs, saving them considerable time when choosing which casting molds to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.