200 - 40,000 kilogram
40,001 - 999,999 kilogram
group nameRTV-2 silicone rubber for molds making
Min Order200 kilogram
brand nameHong Ye silicone rubber
modelHY728-- RTV-2 silicone rubber for concrete mold ma
payment methodT/T, L/C, Westem Union
update timeTue, 05 Nov 2013 12:40:10 GMT
Appearance Liquid
Application Mold Making Silicone Rubber
Color white/ off-white/ blue/ red/ yellow
Purity 100%
Curing agent 4% free of charged
Molding method Pouring , brushing
Package vacuumed packing
Shelf life 12 months
MOQ 100KGS
Sample Free
Min Order200 kilogram
RTV-2 silicone rubber for concrete mold making
RTV Liquid Silicon Rubber Series
RTV-2 silicone rubber for concrete mold making
Model Code--HY630
Usage: RTV-2 silicone rubber for concrete mold making for PU/poly resin products, unsaturated resin products, plaster products, candles and gypsums crafts, toys, soap molds, statues,casting molds making, etc.
Model | HY630 |
Appearance | white |
Mixing Ratio (%) | 5% |
Operating time (mins 25 0C ) | 30~50 |
Curing time(hours 25 0C) | 3~5 |
Hardness (A°) | 26~30 |
Density ( g/cm 3 ) | 1.08 |
Viscosity (Mpas -25 0C) | 24000±3000 |
Tensile-strength(kgf /cm2 ) | ≥40 |
Tear-strength (kgf /cm ) | ≥25 |
Elongation-break(%) | ≥ 420 |
Retractility(%) | ≤0.3 |
Users Instructions for RTV-2 silicone rubber for concrete mold making
RTV-2 silicone rubber for concrete mold making (silicone) and silicon are generally named as two-part room temperature sulfurated silicone rubber, which features an exceptional fluidity and good operability.When mixed with 4%~5% curing agent, they can still be operated within 40~70 minutes, but it will be formed after 4-5 hours.With resistance to deformation, high temperature, acid and alkali, and expansion, silicon flexible molds are used for mold duplication and delicate mold making for poly crafts, resin crafts lighting and candle crafts.
RTV-2 silicone rubber for concrete mold making is a white or red flowable liquid with a hardness of 28~30 shore A° when it gets cured. For molds making of large-sized products, multiple-piece molding methods is required. Meanwhile you will need silicon rubber with a higher hardness. Conversely, soft silicon is indispensable for molds with complicated patterns and delicate details. The amount of curing agent admixture depends on your requirements. Pls add more for a speedy drying process and a fast releasing and less on the other hand.
(Notes:Normally we do not recommend you to add any silicon oil. For special soft mold or molds with complex pattern or fine details, 5%~10% silicon oil can be added to condition the flexibility of the mold for convenience of release)
Mixing Ratio for RTV-2 silicone rubber & curing agent and the reaction time (Under room-temperature-25 0C)
1,Added with 2% of curing agent, RTV-2 silicone rubber can still flow within 2.5 hours, mold can be released in 8-10 hours.
2,Added with 3% of curing agent, RTV-2 silicone rubber can still flow within 1.1 to 1.2 hours, mold can be released in 6-8 hours.
3,Added with 4% of curing agent, RTV-2 silicone rubber can still flow within 55-60 minutes, mold can be released in 4-6 hours.
4,Added with 5% of curing agent, RTV-2 silicone rubber can still flow wtithin 45-50 minutes, mold can be released in ~4 hours.
More details of RTV-2 silicone rubber for concrete mold making, pls feel free to contact Ms Taylor:
Tel:086-755-89212380
Mob:086-18938867522
Skype: taylordl828
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