brushable tin cure silicone rubber for mold making
Category: brushable silicone rubber  Publish Time: 2020-05-29 10:18 
YJS-T28 is a brushable tin silicone rubber that self-thickens for making fast brush-on molds of almost any model. Properly applied, it will hold a vertical surface and will reproduce the finest detail.

 YJS-T28 brushable RTV-2 Silicone Rubber 

Description
YJS-T28 is a brushable tin silicone rubber that self-thickens for making fast brush-on molds of almost any model. Properly applied, it will hold a vertical surface and will reproduce the finest detail. Mixed 100A:2B by weight, rubber quickly develops thixotropy and can be applied with a brush or spatula. Working time is 6 - 8 minutes. Cure time after the final layer has been applied is 1-2 hours at room temperature. YJS-T28 silicone will not stick to most surfaces and will cure with negligible shrinkage to a strong, flexible Shore 28A rubber. 4 thin layers is all that is necessary to make a strong and durable production mold for casting wax, gypsum, concrete or resins (urethane, polyester, etc.).
 
Important: you must weigh Part A & B components using a gram scale to be successful with YJS-T28.
 
Technical datasheet
Typical general characteristics
Inspection Method
Value
Product data (Catalyzed A+B)
YJS-T28
Hardness
Shore A
27-29
Mix Ratio
A:B
100:2
Color
/
White
Pot life
25 ℃ (77F)
8-12mins
Curing time
25 ℃ (77F)
1-2 hours
Mixed viscosity
mPa.s
30000±1000
Tear-strength
kg/cm
≥25
Tensile-strength
M.pa
≥4.5
Elongation
%
   ≥450%
Shrinkage
%
≤0.3%

 

Appearance
Part A: Silicone rubber is a white liquid
Part B: Catalyst is a non-toxic and odorless liquid, white transparent color.
ATT: We can provide fast/medium/slow catalyst of for hot, warm or cold season.

SHELF LIFE:
When stored at or below 32°C (89.6°F) in the original unopened containers, YJS-5 series Silicone Base and its Curing Agents have a usable life of 12 months.

 



  
 
QQ  Shirley Wu
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