High Tear Silicone Rubber for Gypsum Cornice Making

Min.Order: 200

Product origin: Beijing, China

Infringement complaint:

Complaint

US$ 3.85 ~ 4.7

Description

Also called condensation-cure silicone mold rubber,A / B is composed of two components,
room-temperature curing silicones. Molds made from these rubbers exhibit high tear strength, good release properties, and resistance to high temperatures.
these are high-tear silicone mold rubbers,Tin cured silicone molds are used for casting wax, gypsum, polymer modified gypsum, etc. but are best known for standing up to production casting of urethane, epoxy and polyester resins. They are also good for casting low temperature melt metal alloys.

Application:
These rubbers are commonly used in Sculpture & Foundry, Architectural Reproduction & Restoration, Foam, Plastic & Plaster Millwork & Ornamentation, Theming & Display, and Candle Making applications.

Model	902-15	902-20	902-30	902-35
colcur	white	white	white	wihite
Hardness(ShoreA)≥	15	20	30	35
Elongation(%)	480	450	430	400
Viscosity(mixed25ºCmpa.s)	20000±2000	20000±2000	25000±2000	25000±2000
Tear-strength(kgf/c)≥	21	22	21	22
shrinkagerate(%)≤	0.2	0.2	0.2	0.1
Mixing ratio(A:B)	100:4	100:4	100:4	100:4

How to use:
1.A and B must be mixed evenly into a clean plastic or metal container, The bottom and walls of the container must be scraped well to ensure that the silicone is mixed with the curing agent.

2.The pre-operation time of the mixed is 30-40 minutes at room temperature, and the product prototype is poured by vacuum defrosting.The product can be cured completely at room temperature of 3-4 hours and heated at 80-120ºC for 30 minutes.
3. When pouring or brushing mold for medium or large products, it is recommended to pour or brush 2-3mm thick silica gel on the surface of the product to fully and completely contact with the prototype.
4.At 25ºC, A/B is fully mixed and stored safely for 30-40 minutes.The higher the temperature, the shorter the storage time.
Package:
10KG, 20KG, 25KG, 200KG or according to customer requirements.

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