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
modelE630
payment methodT/T, L/C, Westem Union
update timeSat, 09 Nov 2013 12:52:49 GMT
Sample Free
Shelf Life 18 months
Certificate ISO9001:2000,FDA,RoHS
Operating time (hour 25 0C ) 0.5
Colour Any
Hardness(shore A) 15-42
Mix Ratio 1;1
Elongation-break(%) 320-520
Curing time(hour) 3-5
Dynamic Viscosity (mPa.s) 8000-14000
Min Order200 kilogram
Silicone for gypsum molds making
1.Description of Silicone for gypsum molds making RTV mold making addition silicone are generally named as two-part addition silicone rubber that vulcanises at room temperature.Part A is a flowable liquid, part B is the curing agent(platinum catalyst). It features an exceptional fluidity ,good operability,excellent physical properties and very low shrinkage.
The mixing ratio between Part A and Part B can be 10:1 or 1:1.
2.Main application of Silicone for gypsum molds making · Gypsum and Concrete moulding
· PU resin casting
· General Mouldmaking
· Superior manual mold design
3.Main properties of Silicone for gypsum molds making
· almost nil shrinkage
· high chemical resistance to aggressive components of some types of resins
· good tear strength (this feature ensures higher resistance to wearing and shearing)
· high degree of precision in reproduction
· high dimensional stability over time and non-deformability
· high resistance to high temperatures and ageing (resit to -60-200°C)
· excellent non-stick effect
· environmental, odorless and nontoxic
4.Silicone for gypsum molds making standard datasheet (25°C)
Product | E-615 | E-620 | E-625 | E-630 | E-642 |
Appearance | Translucent | Translucent | Translucent | Translucent | Translucent |
Hardness(shore A) | 15±2 | 20±2 | 25±2 | 30±2 | 40±2 |
Mix ratio(A:B) | 1:1 | 1:1 | 1:1 | 1:1or 10:1 | 1:1or10:1 |
Viscocity Part A(mPa.s) | 9000±2000 | 11000±2000 | 15000±2000 | 20000±2000 | 55000±2000 |
Viscocity Part B(mPa.s) | 1900±500 | 1900±500 | 1800±500 | 2400±500 | 150±50 |
Tensile strength (MPa) | 6.2 | 6.5 | 6.7 | 7.2 | 7.6 |
Tear-strength (kN/m) | 25 | 26 | 23 | 24 | 22 |
Elongation(%) | 569 | 581 | 480 | 440 | 450 |
Density | 1.05 | 1.05 | 1.07 | 1.13 | 1.14 |
Pot life/working time (mins) | 30-40 | 30-40 | 30-40 | 30-40 | 30-40 |
Curing time/setting time (hrs) | 3-4hrs(25°C) 120-30mins(60°C) | 3-4hrs(25°C) 120-30mins(60°C) | 3-4hrs(25°C) 120-30mins(60°C) | 3-4hrs(25°C) 20-30mins(60°C) | 6-8hrs(25°C) 30-50mins(60°C) |
Shrinkage rate (%) | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
5.Package of Silicone for gypsum molds making
6.Certificationsof Silicone for gypsum molds making
7.Our factory
Need the price or other information for reference,please feel free to confirm with us some question at first
1) How about the size of your products?
2) Will you make the silicone mold by pouring way or brushing way ?
3) What's the raw material of your products ? Plaster? resin or other?
Then we will according it to recommend the most suitable RTV silicone with the best price for your reference
Any questions, please feel free to contact Mr Lucas:
TEL: 086-755-89212369
FAX: 086-755-89948030
MOBILE:086-18898736056
E-mail: hysj(at)szrl(dot)net
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