Best Plastic Casting Molds in 2026

【MIX RATIO 1A:1B BY VOLUME】no scale necessary, this silicone mold making kit comes with 2 bottles, 42 Oz kit, part A 121 Oz, part B 21 Oz, very easy to use, also the bottle come with tinfoil sealed inside the cap, double guarantee for no leaking;

【LOW VISCOSITY FOR EASY MIXING & POURING】this BBDINO 30A mold making silicone rubber has low viscosity so that you can easily mix and pour the silicone material, no degassing needed, the molds finished with BBDINo Silicone Rubber Mold Making 30A has great flexibility & Strength. very easy to demold, this silicone mold making kit is Great for making simple one- or two-piece block molds, no vacuum degassing is necessary

【POT LIFE: 30 MINUTES, CURE TIME: 3-4 HOURS AT ROOM TEMPERTUARE 25℃(73.4℉)】This liquid RTV-2 mold making silicone rubber cures at room temperature with negligible shrinkage, heat cure will shorten the cure time.

Scrollwork and flourish ornate applique lace mold 4-count

To make soap embed, candle accent, cupcake topper, cake border decorating, polymer clay or resin casting etc.

Food grade flexible rubber push molds

Baroque style royal lace rubber molds

Sculpted flower cake decoration tools. Can use as fondant cake border decoration, cupcake topper, cookie decor, soap ornament, candle accent, paper or air dry clay, resin camafeos, epoxy casting, home decor DIY ( such as cabinet knob, photo frame decorating ) etc.

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.This tool will help bring your icing / cake decorating skills to a new level, enabling you to bring a professional quality to your work.

Make DIY geode bath bomb, glitter charm, orb crystal, flower preservation, resin ball ornament gift, dragon balls, pokeball container, half-sphere paperweight, resin jewelry casting, water globe, snow globe, homemade soap making, spherical candle, round cabochons, garden ornament, hollow bowls (by using 2 different sizes molds), round stones, backyard decoration, concrete flower pot (by using 2 different sizes molds)

Make food ice spheres, chocolate ball, raindrop cake, 3D flower jelly dome, isomalt, ice cream, hemisphere mousse, cereal bowls etc.

Recommend using rubber band to tighten when making sphere resin or soap etc. piece, or you may stick them together with hot glue gun to avoid leakage. After release, you may trim with blade the middle if there is extra resin ( or other materials you use with ) , and sand ( trim ) the top if need. ( while you may cover the top with a bead cap if you are making resin jewelry )

【MIX RATIO 1A:1B BY VOLUME】no weighing scale necessary, this silicone mold making kit comes with 2 bottles, 1 gallon /10 lbs kit, part A 5 lb, part B 5 lb, very easy to use, also the bottle come with tinfoil sealed inside the cap, double guarantee for no leaking;

【SELF-DEGASSING & LOW VISCOSITY & EASY MIXING & POURING】this BBDINO 30A mold making silicone rubber has low viscosity so that you can easily mix and pour the silicone material, no degassing vaccum chamber needed, the molds finished with this liquid silicone for mold making has great flexibility & Strength. very easy to demold, Great silicone for mold making for simple one- or two-piece block molds making;

【WORKING TIME: 30 MINS, CURE TIME: 3~4 HRS AT ROOM TEMPERTUARE 25℃(73.4℉)】This pourable silicone for mold making cures at room temperature with negligible shrinkage, heat cure will shorten the cure time.

【1A:1B BY VOLUME, MEANS NO SCALE NEEDED AT ALL】no scale needed, this liquid silicone mold making kit comes with 2 bottles, 70.55 Oz / 4.4 Lbs kit, part A 35.275 Oz/2.2 lbs, part B 35.275 Oz/2.2 lbs, very easy to use, also the bottle come with tinfoil sealed inside the cap, double guarantee for no leaking;

【SELF-DEGASSING, MEANS NO VACUUM PUMP NEEDED AT ALL】this BBDINO mold making silicone rubber special for all kinds of silicone molds making has low viscosity so that you can easily mix and pour the silicone material, no degassing/pressor pot needed, the molds finished with this liquid RTV Silicone Rubber for Mold Making has great flexibility & Strength. very easy to demold, a real perfect silicone mold making kit, Great for making both 3D or flat silicone molds;

【POT LIFE: 30 MINUTES, CURE TIME: 4 HOURS AT ROOM TEMPERTUARE 25℃(73.4℉)】This liquid RTV-2 mold making silicone rubber cures at room temperature with negligible shrinkage, heat cure will shorten the cure time. WATER-LIKE SMOOTH, MEANS EASY POURING AND CATCHES EVERY TINY DETAILS!

MATERIAL: The 3D pumpkin mold is made of food grade thick silicone, BPA free. Flexible and Non-Stick, Silicone temperature resistant from -40 to +446 degrees Fahrenheit (-40 to +230 degrees Celsius). oven, microwave, dishwasher and freezer safely.

Convenient to use: the Halloween chocolate jelly molds feature non-stick surface, easy to demould, Reusable and sturdy. can be used for Halloween Thanksgiving fall party wedding birthday fondant cake decoration, cupcake topper.

Size:2 IN 1 silicone pumpkin mold, Each half measures approx 2.24 x 1.69 x 1.02 inch, finished pumpkin approx. 1.6 x 1.49 inch, proper size for you to create Halloween Fall themed candies and chocolates.

DIY projects with the clear rubber mold for geode bath bombs, glitter sphere charms, resin ball ornament gift, ice spheres, dragon balls, ball container, chocolate ball, raindrop cake, 3D flower jelly dome, half-sphere paperweight, resin jewelry casting, keychain, orb necklace, large bead, lotion balls, water globe, snow globe, globe ring, dome rings, homemade soap making, spherical candle, round cabochons, crafts idea etc.

Recommend using rubber band to tighten when making sphere resin or soap etc. piece, or you may stick them together with hot glue gun to avoid leakage. After release, you may trim with blade the middle if there is extra resin ( or other materials you use with ) , and sand ( trimm ) the top if need. ( while you may cover the top with a bead cap if you are making resin jewelry )

A bunch of different sizes sphere molds with smooth and shiny interiors. Transparent so you can check the buttom when process project

Gemstone specimens silicone molds for epoxy resin paperweight casting, homemade soap, wax or plaster making, liquid clay DIY crafting, crystal healing jewelry making projects, borax crystal, isomalt making, agate geode fondant cake decoration, cupcake toppers decorating, making edible sugar crystals, chocolate candy melt baking etc. ( Food grade, food and non-food use separatedly )

3D hexagonal healing points chakra cut gemstone prism silicone molds, different shapes of rock crystal prisms. Craft tips: Brush resin on the come-out cystal, it should be shiny.

Color combinations are endless. Sizes are large enough for different types of crafting projects or baking ideas. 1 step easy to use to make soap or resin gems, no need to be re-cut or re-shape.

Set of 6 rubber molds include geometry octagonal bowl; diamond surface round bowls, 2 small size; multi faceted cylinders 3-count. Height 0.9-2inch; finished products measures:#2515_1.57*0.9inch(4*2.3cm),#2516_1.81*1.18inch(4.6*3cm),#2517_1.57*2inch(4*5.1cm),#2518_1.53*1.88inch(3.9*4.8cm),#2519_3.18*2.16inch(8.1*5.5cm),#2520_3.51*2.19inch(8.93*5.8cm)

Soft molds make flowerpot, succulent planter, pen holder, ashtray, bowl, soap or candle jar, jewelry container, vase, bottle, casting resin, cement clay crafts, flowers craft art, bonsai, fairy garden, desk decoration and more.

Can be used with a wide range of edible and non edible materials. Mainly use with 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), concrete, cement, plaster, hot glue, mix media and more.

Assorted 3D rose, peony and chrysanthemum blossom mini candy molds 4-count

For flower unicorn sugar cookies and baby shower cakepops, birthday gum paste cake embellishment, candy melts flowers, modeling chocolate rose assortment, homemade soap topping, wax craft, wedding cupcake topper, sugarcraft cake decoration, paper clay or polymer clay craft, plaster cast, cute element to scrapbooks and cards, DIY resin jewelry casting etc.

Dimensions ( Approximate) : #2118 Rose ( 2-cavity ) 6x5.6x1.2cm. #2119 Flowers ( 7-cavity ) 7.7x7.7x1.2cm. #2120 Rose Blossom 5x5x2.1cm. #2121 Flower 6x6x1.2cm

【ULTRA SOFT & SUPER ELASTIC】: Silicone molds finished with LET'S RESIN 0A molding silicone have excellent flexibility and elasticity, very low shrinkage, and good heat resistance. It is easy to make elastic molds with this mold making silicone rubber, able to make perfect reproductions of original models with complex structures and fine patterns, super easy demolding without breaking the fine details, especially good for making silicone molds for casting candle wax.

【70.5OZ ALL IN ONE MOLD MAKING KIT】: LETS RESIN silicone mold making kit comes with 2 bottles of liquid silicone rubber, each bottle containing 1kg/2.2 lbs casting silicone, as well as 6pcs x different size plastic mold housing; 4 pcs x 8oz plastic mixing cups; 4pcs x wooden mixing sticks; 2 pairs x disposable protective gloves; a perfect mold maing kit for beginners to try, satisfying your various needs.

【EASY MIXING & FAST CURING】: The mix ratio is 1:1 by weight. Just pour the equal Part A and Part B together, then stir the mixed silicone for 3 minutes; the working time is within 30 minutes and the cure time is 3~ 6 hours at room temperature.; heat cure will also shorten the curing time. TIPS: Due to the specific characteristics of 0A hardness, the finished mold may feel oily on the surface. Please kindly extend the curing time to at least 24 hours.

Clear silicone molds for polymer clay, liquid polyclay, epoxy resin, soap, candle, wax, plaster, isomalt, chocolate, mousse, candy melt and more materials crafting jewelry projects or baking ideas etc.

Ball orb shape, round silicone mold, sphere resin jewelry making kit , resin casting mold, large clay bead mold, craft mold

Recommend using rubber band to tighten when making sphere resin piece, or you may stick them together to avoid leakage

[♥ 1A:1B BY VOLUME, LARGER KIT 140.8 OZ ] NO SCALE NEEDED AT ALL, use BBDINO Super Elastic mold making liquid silicone rubber, you can mix part A and part B either by Volume 1:1 or by Weight 1:1 both ok, this is our unique formula design, unlike most other silicone mold making rubber, only can be measured by weight, fussy and easy to get wrong mixed. Larger kit come with 70.4 Oz part A and 70.4 Oz part B to fulfil larger project casting and saving money for buying several smaller kits.;

[♥ SELF DEGASSING, MEANS NO VACUUM PUMP NEEDED AT ALL] This BBDINO Super Elastic Liquid Silicone for Mold Making is Water-Like Smooth, very easy to mix evenly, after mixed, you will see the silicone mixture degassing itself, all the bubbles come up and popping and disappear by itself, even if you pour into the mold box immediately after mixed, saving money for buying a pressor pot, saving time and very friendly for mold making beginners;

[♥ WORKING TIME 30 MINUTES, QUICK CURE WITHIN 4 HOURS] Our BBDINO silicone rubber mold making is special designed with 30 minutes working time, and cures in about 3-4 hours, @ room temperature of 23℃/73.4°F, quick set with negligible shrinkage, WATER-LIKE SMOOTH, MEANS EASY POURING AND CATCHES EVERY TINY DETAILS OF THE OBJECT!

WAX HOMEMADE SOAP MOLD: package included 5 x Sphere Shape Silicone Molds.

DIY PROJECTS MOLD: suitable for such materials as light metals, plaster, wax, soap, epoxy and urethane resins, geode bath bombs, glitter sphere charms, resin ball ornament gift, ice spheres, dragon balls, container, chocolate ball.

EPOXY JEWELRY MAKING CANDLE MOLD: reusable mold, easy to use and clean. Recommend using rubber band to tighten when making sphere resin piece, or you may stick them together with hot glue gun to avoid leakage.