MINGCHENG GROUP LIMITED
Customer First, Dedication, Innovation. MC Silicone Professional Mould Making & Casting Materials Supplier
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Technical Properties
| Item No. | MCPLA-L20A/B | |
| Appearance | Viscous liquid | |
| Color | Translucent | |
| Viscosity ( cps,approx.) | 7000-9000 | |
| Mix ratio (A:B) | 1:1 | |
| Working time(at 25℃ ,minutes) | 30-40 | |
| Curing time(at 25℃,hrs,approx.) | 6 | |
| Hardness Shore A(after 24 h) | 20 | |
| Tensile Strength(Mpa,after 24 h) | 4.2 | |
| Elongation(%) | 550 | |
| Tear Strength(N/mm) | 17 | |
| Linear Shrinkage (%) | 0.1 | |
Features of MCPLA-L20A/B RTV2 platinum cured liquid silicone rubber
#Good flowability
#Very stretchy
#Odorless, eco-friendly
#Long Library life
#Skin safe & medical grade
#Easy processing - mixing ratio 1 : 1
#Adjustable working time and curing time
Applications of MCPLA-L20A/B RTV2 platinum cured liquid silicone rubber
#Making many kinds of molds:
1.Low melt metals (mold life can be short), Cement, Concert,concrete stones, wax molds, PU molds, resin molds, gypsum casting, candle molding, chocolate , candy and any other food product mold making, prototyping etc.
2.Making molds for food grade products: chocolate molds, cake molds, sugar molds,ect.
#Make silicone products, like silicone insoles, silicone gel, ect. and prosthetics arms, prosthetics hands, prosthetics foot, prosthetics legs, ect. and silicone mask, skin, ect. sex dolls, sex toys, ect.
Processing and Instructions of Addition Cure Silicones
Processing and Instructions of Addition Cure Liquid Silicones Rubber
Step 1
The ideal working temperature is around a constant 25°C. Best results can be obtained at constant temperatures between 21°C and 26°C, in a clean, dry, dust-free environment. Avoid working in high humidity.
Step 2
Measure product in accordance with your intended use. Prepare 1 part A to 1 part B by weight and pour into a clean, smooth-sided container large enough to hold all the liquid and allow room for mixing.
Step 3
The material must be mixed thoroughly for at least 5 minutes. make sure to scrape the container sides, bottom, and corners as you mix. Be careful not to whip excessive air into the mixture.
Step 4
Prepare a container(not silicone material),add the item and keep them face up.
Pour the mixed silicone onto the container and distribute evenly to cover the top of the item by at least 6-7mm
Step 5
Adjust the position and then let it cure, the bubbles will melt gradually.
Step 6
Pull the item out of the mold
Note:
Contamination from sulfur (e.g., sulfur-based clay), amines, tin compounds, cured polyester resin, some paints and some silicone rubbers may inhibit surface cure of platinum-cured rubbers.
Apply a release agent, Although not usually necessary, a release agent will make demolding easier when casting into most surfaces.
Storage and shelf life
MC Silicone MCPLA -H Series should be used within 12 months from the manufacturing date. Beyond this date, MC silicone no longer guarantees the products confirms with the sales Specification. In order to preserve best properties it is recommended to follow strictly the following guild lines:
Store the original packing tightly sealed and at a temperature below 30 degree Celsius.
Use the product as soon as the packaging has been opened.