Brushable Silicone Rubber for Casting Mold (RTV2028)

Brief Introduction of Brushable Silicone Rubber for Casting Mold

RTV-2 silicone rubber is a two component material, and it consist of Part A base silicone and Part B curing agent. When the two parts mix together and pour or brush on a object, the silicone base and curing agent can cure to be a silicone mold at room temperature; And 24 hours later, the silicone mold can be released from the object, and then the silicone mold can be poured into the following material to copy: Plaster, polyurethane, PU, GRC, cement, resin, polyester, wax etc...

Procedures of Brushable Silicone Rubber for Casting Mold

1. Make sure the surface of the original is clean and free of loose material.
2. Weight 100 Part A base and 2 parts of CA30 Curing Agent in a clean container.
3. Stir Part A base silicone before use thoroughly, as filler separation may occur upon prolonged storage.
4. Mix Part A and Part B evenly until the CA30 completely dispersed in the base.
5. Pour the mixed Part A base silicone and CA-30 curing agent as soon as possible onto the original
6. De-mold after 24 hours, it is will improve the replicate times of silicone mold.

Note: It is strongly recommended that entrapped air be removed in a vacuum chamber, allowing the mix to completely expand and then collapse. After a further 1-2 mins under vacuum, the mix should be inspected and can be used if free of air bubbles. A volume increase of 3-5 times will occur on vacuum de-airing the mixture. So a suitably large container should be chosen.

Brushable Silicon Rubber (silicone rubber) for Casting Mold (RTV-2) application:

Brushable Silicon Rubber for Casting Mold (RTV-2) is primarily intended for poly resin crafts, PU crafts, PU resin crafts, gypsum crafts, unsaturated resin crafts, lighting and candles crafts, plastic toy, stationery gifts crafts industry, a large statue Buddha, relievo furniture, furniture decorative materials, statues Buddha, artifacts copied, building decoration materials, large-scale cement mold, artificial fossils Factory, Europe component factory, simulation landscapes, animals and plants sculpture, sandstone crafts and so on.

Technical parameter of Silicone Rubber for Casting Mold

Item No.	RTV2028
Color	white
Curing agent	CA30
Mixing ratio	100:2
Mixed viscosity	40000-45000 cps
Working time	30-40 Minutes
Curing time	4-6  Hours
Hardness	28 Shore A
Tear Strength	30 N/mm
Tensile Strength	4.5 MPA
Shrinkage	≤0.3%