Search This Supplers Products:Mold making Silicone rubberSilicone RubberLiquid Silicone rubberMolding Silicone RubberSilicone OilPad Silicone rubber
US $8.00200 - 40,000 kilogram
US $6.8040,001 - 999,999 kilogram
Paramtents
color white
HS code 39100000
sample available
normal packing 25kgs per drum
delivery within 3 days
usage for mold making
MOQ 200KG
application for mold making
appearnce liquid
Packging & Delivery
Min Order200 kilogram
Briefing
Detailed
RTV silicone rubber 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, furniture, furniture decorative materials, statues Buddha, artifacts copied, building decoration materials, largescale cement mold, artificial fossils Factory, Europe component factory,
simulation landscapes, animals and plants sculpture, sandstone crafts and so on.
RTV silicone rubber description
RTV silicone rubber is white or red flowing liquid with general hardness of 22-50 shore A after curing. tin cured silicone rubber is a kind elastic silicon rubber mold which features with resistance to deformation, high-temperature, acid-alkali and expansion as well as high reproduction times, good tensile strength, tear strength and elongation.
FAQ. Why the RTV silicone rubber just can be reproduced for a few times?
It can be due to the following reasons:
a. Adding too much silicone oil in to silicon rubber. Silicon oil is an additive which destroies the molecular weight of silicone rubber and reduce the tension and tear strength.
b. Using the silicon rubber with a high hardness to make molds for small sized products with delicate and intricate designs and the silicon rubber with a low hardness to makes molds for large sized products with simple designs.
(Notes: we should choose the silicon rubber specifically according to the requirements of our products to avoid this problem.)
Datesheet of RTV silicone rubber.
Property | 625# | 630# |
Hardness (Shore A) | 25 | 30 |
Tensile strength, MPa | 3.1 | 3.6 |
Elongation @ break, % | 580 | 550 |
Tear Strength (N/mm) | 25 | 32.6 |
Linear shrinkage (%) | 0.3 | 0.3 |
Viscosity | 19000-22000 | 23000-25000 |
Color | Off White | Off White |
Mixing ration | 100:5 | 100:5 |
Pot life | 40 minutes | 30 minutes |
Cure time | 4-5 hours | 4-5 hours |
Operation of RTV silicone rubber
1. deal with original moulds
2. brush on release agent
3. correct weigh accoring to mixng ratio
4. stir the two component evenly
5. vacuum-pumping
6. pouring
RTV silicone rubber Manufacturing instruction:
Add curing agent of 2%-3% at the room temperature, the RTV silicone rubber is still operational within 30 minutes, and in 2-3 hours.
1. Adding curing agent 1%, the RTV silicone rubber can still be operated within 2. 5 hours and can be demoulded after 6-8 hours.
2. Adding curing agent 2%, the RTV silicone rubber can still be operated within 50 minutes to 1 hour and can be demoulded after 2-3 hours.
3. Adding curing agent 3%, the RTV silicone rubber can still be operated within 30 minutes and can be demoulded after 1. 5-2 hours.
4. Adding curing agent 4%, the RTV silicone rubber can still be operated within 15 minutes and can be demoulded after 1-1. 5 hours.
Any questions of RTV silicone rubber, please feel free to contact Rose :
Tel: 0086-755-89948294
Mob:0086-18938867525
E-mail: hyjz(at)szrl(dot)net
Msn: ross1024(at)msn(dot)cn
Skype: LuoYan1012
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