rtv-2 liquid silicone rubber for mould making
- Payment Type:
- T/T, L/C, Western Union
- Incoterm:
- FOB
- Min. Order:
- 200 Kilogram
- Min. Order:
- 200 Kilogram
- Delivery Time:
- 7 Days
- Transportation:
- Ocean, Land, Air
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Contact Now| Place of Origin: | china |
|---|---|
| Productivity: | 200ton/month |
| Supply Ability: | 200ton/month |
| Payment Type: | T/T,L/C,Western Union |
| Incoterm: | FOB |
| Certificate: | ISO9001 |
| Transportation: | Ocean,Land,Air |
Descripation:
RTV-2 mold making silicone rubber is generally named as two-part silicone rubber that vulcanizes at room temperature.Part A is a flow able liquid ,part B is the catalyst.
Characteristical:
• Easy to use
• Use tin catalyst
• Reproduce intricate details
• Resist tearing with repeated use
• Provide good resistance to most chemicals
• Offer variable cure times at room temperature
• Flexible to reduce de-molding and stress problems
• High duplication times(e.g.800-1000times for gypsum products)
Application:
• Artificial stone products molding,Wax casting
• Lighting & candles crafts,stationery gifts,crafts industry
• Making molds for gypsum,GRC,concrete,resin products etc
• Casting for Statue,Buddha,Christmas ornaments,sculptures,figures etc
• Unsaturated rein crafts,epoxy resin crafts, poly resin crafts,polyester resin
• Decoration building mold making (cornice,column, balustrade, ceiling, pedestals,fountains, mantels, wall ornament, planter,furniture decorative etc.)
Parameter:
catalyst
| Working and cure times at room temperature (25°C)Catalyst | Appearance | Base/catalyst mixing ratio by weight | Pot life Time mins | De-mold Time |
| T01 | clear | 100:2 | 30-40mins | 14-15hrs |
| T01 | clear | 100:3 | 20-30mins | 9-10hrs |
| T01 | clear | 100:4 | 10-20mins | 4-5hrs |
| T02 | clear | 100:10 | 30-40mins | 8-10hrs |
silicone
| Characteristical before curing | Characteristical after curing | ||||||
| Item NO. | Appearance | Viscosity | Hardness | Tear strength | Tensile Strength(Mpa) | Elongation break (%) | Linear Shrinkage(%) |
| Mpa.s | Shore A | (KN/m) | |||||
| RTV830 | white | 25000±2000 | 30±2 | 31±2 | >4.1 | 450 | ≤0.3 |
How to make mold?
1.Mixing
Please weight 100 Part A base and 2 parts of organic tin catalyst in a clean container.Thoroughly stir Part A base silicone before use, as filler separation may occur upon prolonged storage. Mixing Part A and Part B evenly until part B completely dispersed in the base. Hand or mechanical mixing can be used,but do not for an extended period of time or allow the temperature to exceed 35°C. Mix suitably small quantities to ensure thorough mixing of base and catalyst.
It is strongly recommended that entrapped air be removed in a vacuum chamber,allowing the mix to completely expand and then collapse. After a further 1-2 mins under vacuum,the mix should be inspected and can be used if free of air bubbles. A volume increase of 3-5 times will occur on vacuum de-airing the mixture. So a suitably large container should be chosen.
2.Pouring the mixture and curing
Pour the mixed Part A base silicone and part B organic tin catalyst as soon as possible onto the original,avoiding air entrapment.The catalyzed material will cure to a flexible rubber within 6 hours(or faster by different mixing ratio or room temperature),we advice you de-mold after 24 hours ,it is will improve the replicate times of silicone mold.
Storage:
When stored at or below 30°C in the original unopened containers,SILASTIC Base and Catalyst have a usable life of 12 months.from the date of production.After 12 months stock,pls use the Stir to mixing the Part A silicone for some mins, then the silicone can be use again,no influence for other performance.
Note:
This product is neither tested nor represented as suitable for medical or pharmaceutical uses. Not intended for human injection. Not intended for food use.
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