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Dongguan Mingcheng Electronic Technology Limited
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Applications of rtv molding silicone in 30 Shore A
RTV molding silicone in 28-30 Shore A can used for resin crafts ,gypsum crafts ,unsaturated resin crafts, lighting and candles crafts in medium and big size .
Operations of rtv molding silicone in 30 Shore A
& Step One: Take 100g of part A and add 2g of part B and mix the silicone rubber and curing agent evenly.
Notes: Moulding silicon rubber is a kind of flowing liquid and it contains two parts. Part A is a kind of white flowing liquid and part B is the curing agent.
& Step Two: vacuum pumping
Without exception, this step takes less than 10 minutes.
Note: The time for vacuum-pumping should be less than 3-5 mins , otherwise, once the silicone rubber has cross-link reaction during vacuumizing, it will not be operated.
& Step Three: Brushing cast & Perfusion Molding operation
Features of rtv molding silicone in 30 Shore A
Medium hardness good for big sized product
Good fluidity good for product in pouring way .
Can add thickening agent for complex pattern in brushing way
Physical properties of rtv molding silicone in 30 Shore A :
P Item NO. | Characteristics before curing | Curing | ||||||
Part A | Part B | Part A+ Part B | Pot life at 250C mins | De-molding Time at 250C hours | ||||
Appearance | Appearance | Ratio | Viscosity | |||||
RTV2030 | white | Liquid clear | 100:2 | 26000 cps | 30 | 4-6 | ||
Characteristics after curing 24 hours | ||||||||
Hardness Shore A | Tear strength (N/mm) | Tensile Strength(Mpa) | Elongation break (%) | Linear Shrinkage | ||||
28-30 | 30 | 3.8 | 480 | ≤0.3% | ||||
Storage of rtv molding silicone in 30 Shore A
RTV 2 silicone is an environmentally-friendly liquid silicone product, is not easy to burn and can be stored and transported as non-hazardous goods. The shelf life of the product is about 9 months from the date of production. Inspection is required when exceeding the time limited. It can continue to be used in case of neither thickening nor deterioration.
Package of RTV-2 molding silicone rubber
Part A base silicone: 20kg/drum, 25kg/drum or 200kg/drum
Part B CA30 Curing Agent: 800g/bottle,and 10kg/bottle
Professional factory of RTV-2 Molding Silicone :
We are manufacturer, and specialized in manufacturing different hardness, different viscosity silicone rubber series, we are competitive in price with good quality.
Should you have any question, please feel free to contact Ms Julie.
Skype: julieszmc
MSN: julieszmc(at)hotmail(dot)com
MINGCHENG GROUP LIMITED