Rtv Liquid Moulding Silicone Rubber for craft mold making
|Model||Appearance||Viscosity(cs)||Hardness(A°)||Tensile Strength(kgf/cm)||Tear Strength(KN/cm)||Elongation(%)||Mixing Ratio(%)||Operating Time(H/250C)||Curing Time(H/250C)|
Application of Rtv Liquid Moulding Silicone Rubber
liquid molding casting silicone rubber is mainly applied for making
various molds,such as reproduction of poly resin, epoxy,
polyurethane-polymer, plaster, gypsum casting and moulding, soaps,
candle & lighting, architecture, decorative arts and crafts,
plastic toy, gift and stationery, big statue, cultural relic
Features of Rtv Liquid Moulding Silicone Rubber
RTV liquid moulding silicone rubber has the following features
a. low viscosity, exceptional fluidity and easy operation : 21000
cps suitable for pouring
b. resistance to deformation, high-temperature 220 degree
c. acid, alkali and ageing-resistance
d. low shrinkage< 0.2%
e. good tensile strength 36±2 (kgf/cm)
f. high reproduction times
Step 1: prepare the original molds
Make sure your original molds perfect. fix it on a board. And fix
the original mold on a board , then used four piece of board to
enclose the original molds .
Step 2: Take 100 G parts A and add 3G parts B and mix them evenly.
＊Notes: Mold making silicon rubber is a kind of flowing liquid ,it
contains two parts. Part A is a kind of flowing white liquid and
part B is the curing agent or catalyst .Pls follow the step
1.Weigh the two part exactly by electronic weight..
If not , for example add two much catalyst , the operation time
will be too fast to operate ,which will cause inconvinience to
2.Mix part A and part B evenly.
Otherwise the silicon rubber will be partly solidified and this
will give birth to difficulties in your final operation. What’s
more, the finished molds will meet a short life. All of these will
cause a waste of silicon rubber.
Step 3: 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 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 sugges to set the silicone mold for another 12 hours after
demould before put into large production
(1) Free sample for testing.
(2) Strict Q/C (quality of control) management system.
(3) Enough production capacity and timely delivery.
(4) We support customized package and product.
(5) Prompt shipment with professional documents.
(6) Offering professional technical support.
(7)Engineers Site Instruction
(8)New products developing
(9)New Market developing
(10)Factory Visiting Reception
(11)China visiting reception
(12)Related Products Purchasing Assistance
25KG/drum vacuum packing for part A +1kg/ bottle catalyst for part
200KG/drum packing for part A +1kg/ bottle catalyst for part B