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Specifications

technics mould silica gel

Product features:RTV silicone rubber is a high-performance moulds, mould copy material molding simulation with strong sex, vulcanization after the silicone rubber and other non-stick, high temperature resistant, good aging properties such as excellent performance. It also has high strength, elongation big tear resistant, swelling performance and so on prominent advantages.
Widely used in glass resin POLYSTER), handicraft polly resin, (EPOXY resin), EPOXY, polyurethane molding products of archaize furniture, adornment and ceramics, art candles, artificial statue, art reproduction, artificial imitated natural stone, shoes mold, lighting engraving, PU foaming resin handicraft replication PU foaming resin and low melting point alloy material product molding, still can make the printing industry etc various production mold turn board materials more can be directly applied to products.
The product specification and performance indicators:
Performance indexRTV - 118RTV - 338RTV - 528RTV-515RTV-490RTV-373
colorwhitewhiteivoryivorytranslucentlight gray
Viscosity(Mpa.s)350032003500300025002000
curing proportion1.5±0.51.5±0.51.5±0.51.5±0.51.5±0.51.5±0.5
curing time2~4H2~4H2~4H2~4H2~4H2~4H
harding(shoreA)30±228±226±230±236±250±2
tensile strength kg/cm2 >18 >25 >28 >30 >28 >12
tear strength/KGF.  cm - 1 >20 >22 >25 >28 >25 >10
Elongation, %300-400400~500450~550550~600450~550100~120
Thethod of use:Choose suitable containers, adding 1/4 containers volume of makings, according to the proportion (weight) add hardener, fully mix than 0.09 MPa under vacuum exhaust bubble 5-10 minutes, rapid will melt into the cavity
Storage and transportation:
1, mould silica gel should be stored at room temperature, dry and seal containers, do not contact with water to prevent spoilage.
2, the product storage life for six months.
3, this product is made from drum packaging, specification is 5kg, 25 kg and 200kg three specification.
4, this product is dangerous goods transport.
cautions:
1, this company product not required to add wt adjust hardness and liquidity, users if need more than the above brand soft or liquidity better product, please contact with the company provided.
2, the user if need operation time shorter or longer, in principle, don't take add less or more curing agent method, should contact with the company provides new configuration of curing agent.
3, perfusion prototype if belong to the materials containing silicon ceramic etc, best will facilitate prototype spray-paint bosses.
4, for your mould can reach the right use effect, please put the mould at least 24 hours after deposit.