condensation cure silicone rubber tin cure rtv silicone rubber soft silicone rubber for mold making for artificial stone

Share on (1600224958204):


Price:$5.55 - $6.90

Quantity:


Product Overview

Description


 


Condensation cure silicone rubber(RTV 2) Description


    DC-C25 liquid tin cure(condensation cure ) rubber is a kind of two part silicone rubber with mixing ratio of 100:2~10:1


    and the normal curing remperture is room temperture, so it is also call room temperture cure silicne rubber or RTV(Room temperature vulcanized silica gel)


   


 11.jpg


Characteristics of condensation cure silicone rubber (RTV 2)


*excellent fluidity and good operability, easy to demold


* hihg tensile and tear strength  


* bubble releasing easily


*Non-deformation


*Low shrinkage


*Aging resistance ,high temperature resistance (220℃)


*Environmentally, food-grade


 


Application of condesation cure silicone rubber (RTV 2)


    condesation cure silicone rubber is mainly used for making molds . For Example, making mold for  concrete stone,GRC,polyurethane products ; wax, candle decoration ; rapid prototyping and tyre molds; ,candy and similar products.


 


condensation cure liquid rtv2 silicone rubber  Technical Parameters  (RTV 2)





























Model



Color



Mixing ratio (%)



Pot life (mins,


under 25℃)



Curing time


 



Hardness  ( Shore A )



Viscosity


(After A/B mixed ,mPa.s)



Shrinkage


rate (%)



Elongation


(%)



DC-C25



Translucent


or white



100:2



30-50



3-5hrs( 25℃)



25±2



 


19000±1500


 



≤0.3%



 ≥ 435%




10.jpg


 


Operation instructions


Step 1: prepare the original molds 


Prepare an perfect original mold and clean it totally before operation .


*Notes:Make sure your original molds(Model) and operation tool cleaned up totally to avoid uncure problem .


 


Step 2: Take 100 G part A and 2 G part B(catelyst ) (Or 100 G part A and 10 G part B) and mix them evenly.


 


Step 3: Vacuum pumping


Without exception, this step takes less than 8 minutes. Otherwise, it will cause cross linking reaction, and no more further steps will be available.


 


Step 4: Pouring casting or Brush operation


*Notes:1. For simple pattern products we suggest use pouring operation way , which will be very easy to operate and demould. Pourable silicone require light viscosity which will be easy to flow smoothly and easy to de-air .


        2.For delicate pattern products we suggest use brushing operation way , which can copy the pattern exactly . Brushable silicone require high viscosity which won’t be easy to flow away and easy to brush .  


        3. We suggest to set the silicone mold for another 12 hours after demould before put into large production .


 


 


 51238DC-A25-Food-Grade-Addition-Cure-Silicone


 


Package of the condensation silicone rubber (RTV 2)
1KG/tin, 3KG/drum,  5KG/drum,20KG/drum,25KG/drum, 200KG/drum


 


silicone factory7


0.2038 s.