100 - 40,000 kilogram
40,001 - 999,999 kilogram
group nameRTV-2 silicone rubber for molds making
Min Order100 kilogram
brand nameHong Ye silicone rubber
modelHY-625,HY-630,HY-638 silicone rubber for concrete
payment methodT/T, L/C, Westem Union
update timeTue, 05 Nov 2013 12:26:08 GMT
Appearance Liquid
Application Mold making silicone rubber
H.S. code 39100000
Color white/off-white/red/yellow/blue
Shelf life 12 months
Molding method Pouring / brushing
Purity 100%
MOQ 100kgs
Sample Free
Package Vacuum packing
Min Order100 kilogram
Silicone Rubber for Concrete Casting
Application of silicone rubber for concrete casting
Silicone rubber for concrete casting is is suitable for making silicone moulds for such as concrete, stone, cement, plaster products ect, . Silicone rubber for concrete casting is also called mould making silicone rubber which is a mould making material. It will help to make perfect moulds then help us replicate thousands of same products.
Featurers of silicone rubber for concrete casting
1. Good characteristics of easy-operation
2. Light viscosity and good flowability
3. Low shrinkage
4. Favorable tension
5. No deformation
6. Favorable hardness
7. High temperature resistance, acid and alkali-resistance and ageing resistance
Datassheet of silicone rubber for concrete casting
Model | Color | Mixing ratio (%) | Pot life (mins) | Demouled time (hrs) | Hardness(A0) | Tensile-strength (kgf/c2) | Tear-strength (kgf/cm) | Viscosity (cps) | Elongation (%) |
625# | white | 3-5 | 30-60 | 4±1 | 25±2 | 35±2 | 20±2 | 19000±3000 | ≥400 |
630# | white | 3-5 | 30-60 | 4±1 | 28±2 | 40±2 | 25±2 | 24000±3000 | ≥395 |
638# | white | 3-5 | 30-60 | 4±1 | 35±2 | 47±2 | 27±2 | 32000±3000 | ≥470 |
Notice:
625# is suitable for making mould for small size concrete etc. products by pouring way;
630# is suitable for making mould for small and medium size concrete etc. products by pouring way or brushing way;
638# is suitable for making mould for large size concrete etc. products by brushing way.
How to make silicone moulds for concrete by silicone rubber?
Step One: Take 100g of part A and add 2g of part B and mix the silicone rubber and curing agent evenly.
Step Two: vacuum pumping
Without exception, this step takes less than 10 minutes. Otherwise, it will cause cross linking reaction, and no more further steps will be available.
Step Three: Brushing cast & Perfusion Molding operation
FAQ of silicone rubber for concrete casting
Why is the tear strength of the silicone mold weak?
In order to reduce the viscosity of silicone rubber and pursue a good quality, you may add a lot of silicone oil into the silicon rubber when making molds. In fact, it might have just the opposite effect. The tension and the tear strength will be reduced badly with the addition of silicon oil. And the silicon molds will be in a weak and flimsy manner.
More details of silicone rubber for concrete casting , pls feel free to contact Taylor:
Tel:0086-755-89212380
Mob:0086-18938867522
Skype: taylordl828
Facebook: hyw(at)szrl(dot)net
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