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Crafts Molding Silicone

Product No.: C-825 and C-830 

Brand: GuoChuang Silicone 

Application: Making molds for plaster crafts, concrete crafts, plastic crafts, resin crafts etc.

Keywords: rtv2 silicone for crafts molds, mould making liquid silicone rubber, rtv2 silicone rubber


A number of custom, Do-It-Yourself craft and hobby projects can be completed with the help of GC Silicone molding materials. Any decorative object (e.g., resin jewelry, model trains, custom tiles, small figurines, wall art, much more) can be molded using silicone or polyurethane mold rubber and then replicated in any number of materials, including plastic, concrete, plaster, foam and more.

Popular mold making silicone rubber is C-820 and C-825, which is at in-cured silicone rubber with a 100A:3B mix ratio; measure with a digital scale.

2. Technical Datasheet

Typical general characteristics Inspection MethodValue
Product data (Catalyzed A+B)
HardnessShore A20±225±2
Mix RatioA:B100:3100:3
Pot life25 °C (77F)30-40mins30-40mins
Curing time25 °C (77F)3-4 hours3-4 hours
Mixed viscositymPa.s16000±100020000±1000

Note: This is a 100A:3B mix ratio product that must be measured by weight. The choosing of suitable hardness should be according to the size and pattern design of the products. If large products and therefore multiple-piece molds are needed by customers, silicone rubber with higher hardness will be required for the molds. Conversely, soft silicon is indispensable for molds with complicated pattern and delicate details. The amount of curing agent admixture depends on the actual need of customers. More will be added for speedy drying and fast release and less when otherwise.

Crafts Molding Silicone


1.Low viscosity

2.great flexibility

3.Extra low shrinkage

4.Chemical resistance

5.release properties

6.Easy to work with

4.High tear strength

5.Heat Resistance

6.various color is available

7.High reproduction rate


When stored at or below 32°C (89.6°F) in the original unopened containers, C-8 series Silicone Base and its Curing Agents have a usable life of I0 months.


Silicone base:1kg/drum; 20kg/drum;25kg/drum;200kg/drum.

Curing Agent: 30g/bottle; 1kg/bottle

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