wax injection Casting molding rtv silicone
Seller Promise:
Special Characteristics:
l Different Shore A Hardness available from 28-40 with flexibility and toughness
l Fast and non shrink cure at room temperature which could can be accelerate considerable by the application of heat
l Good transparency of the cured rubber allows split lines to be cut accurately in block molds
l Low visicosty two components for easing filling,High tear strength, long life of the molds
Main field of application
Vacuum casting Rapid prototyping Electrical application Mould making
Special Characteristics:
l Different Shore A Hardness available from 28-45
l Fast and non shrink cure at room temperature which could can be accelerate considerable by the application of heat
l Good transparency of the cured rubber
l High tear strength
l reproduce finite details from patterns
Product | Catalyzed Viscosity:cps | Base Color | Specific Gravity | Mixed Ratio | Shore A Hard | Tensile (Mpa) | Elongation % | Shrinkage % |
LH840 | 40,000 | Translucent | 1.08 | 10A:1B | 28 | ≥3.6 | >420 | <0.1 |
LH625 | 60,000 | Translucent | 1.10 | 10A:1B | 38 | ≥4.0 | >400 | <0.1 |
Mixing
Select a mixing container 4-5 times larger than the volume of RTV silicone rubber compound to be used. Weigh out the RTV silicone rubber base compound and add the appropriate amount of curing agent. With clean tools, thoroughly mix the RTV base compound and the curing agent, scraping the sides and bottom of the container carefully to produce a homogenous mixture. When using power mixers, avoid excessive speeds which could entrap large amounts of air or cause overheating of the mixture, resulting in shorter pot life.
De-aeration
Air entrapped during mixing should be removed to eliminate voids in the cured product. Expose the mixed material to a vacuum of about 29 in. of mercury. The material will expand, crest, and recede to about the original level as the bubbles break. Degassing is usually complete about two minutes after frothing ceases. Automatic equipment designed to meter, mix, deaerate, and dispense two-component RTV silicone rubber compounds will add convenience to continuous or large volume
Curing
Uncured silicone rubber compounds will cure sufficiently in 24 hours at 25C (77F). To achieve faster cure speeds, elevated temperatures may be used.
STORAGE WARRANTY PERIOD
The warranty period is 12 months from date of shipment if stored in the original unopened container at temperatures between 5C and 30C (41F and 86F).
Packing
Silicone A Part : 1KG/Bottle, 20KG Pail Hardner B Part: 100g Bottle, 1KG Bottle
