15 Shore A Soft Liquid Silicone Rubber White RTV2 Tin Cure Silicone For Candle Moulds
15 Shore A Soft Liquid Silicone Rubber White RTV2 Tin Cure Silicone For Candle Moulds
Product Description
Silicone liquid rubber is is generally named as two-part room temperature sulfurated silicone rubber, which features an exceptional fluidity and good operability. When mixed with 2% curing agent, they can still be operated within 30 minutes, but will be formed after 4-6 hours. With resistance to deformation, high temperature, acid and alkali, and expansion.
Various Applications of silicone liquid rubber
Various Applications of Silicone Liquid Rubber
Architectural Restoration
Concrete Casting
Gypsum Decorations
Resin Arts and Crafts
Candle and Soap
Staute & Scupltures
Wax Casting
Features of RTV-2 silicone liquid rubber
(1) high tensile & tear strength
(2) Low linear shrinkage
(3) free Curing agent
(4) brushing & pouring
(5) high duplication times
Typical Properties of RTV-2 silicone liquid rubber
|
Item No. |
Properties before curing | Curing | ||||||||
| Part A | Part B | Part A+ Part B | Pot life at 250C |
De-molding Time at 25℃ |
||||||
| Appearance | Appearance | Ratio | Viscosity | |||||||
|
MCSIL-2015 silicone rubber |
White | Clear | 100:2 | 20000±20000 cps | 30-40 mins | 4-6 hours | ||||
| Properties after curing 24 hours | ||||||||||
|
Hardness Shore A |
Tear strength | Tensile Strength | Elongation break (%) | Linear Shrinkage | ||||||
| 15 | 26N/mm | 3.6 Mpa | 500~550 | 0.2-0.4% | ||||||
Operation Instructions of Silicone Liquid Rubber
Correct mixing ratio
Component A is silicone rubber, and component B is curing agent or vulcanizing agent. Usually the mixing ratio will be 2-3%, e.g. to 100g silicone rubber should be added 2g catalyst and then mix them thoroughly. (Note: the weight of the silicone and catalyst should be weighed correctly).
Pouring the mixture and curing
Pour the misxed Part A base silicone and CA-30 curing agent 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.
Package of RTV-2 Silicone Liquid Rubber
Part A silicone base : 25kg/drum or 200kg/drum
Part B CA30 Curing Agent: 800g/bottle, 1kg/bottle
Storage & Shelf life
When the silicone rubber is stored at or below 25℃ (77℉) with the original unopened containers, Silicone Base and Curing agent have a usable life of 12 months from the date of production. After 12 months stock, please use the Stir machine to mix the Part A silicone for some minutes, then the silicone can be used again, no influence for other performance.
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