Liquid Silicone Rubber for Injection Molding
Description:
Liquid Silicone for Injection Molding is a two-component liquid silicone rubber for injection molding processes. The silicone rubber shows a higher productivity, high transparence, less yellowing and low volatile contents. It would be possible to increase productivity by reduce injection time and total cycle time. Also, it is easier to inject into the cavity of the mold which is more complicated designed. In addition, higher transparency and less volatile content make it most suitable for consumer products.
Applications:
Because of the outstanding properties, The liquid silicone rubber for injection molding is particularly suitable for the following elastomeric articles: baby nipples, medical tubs, cake molds, food molds, sealing elements, O-rings, stoppers, diaphragms, keypads, bellows, vibration dampers, air vent flaps, switch covers, pressure cookers parts, cable connectors s.o.
Specification:
Vulcanisates consisting of liquid silicone rubber are distinguished by the following properties:
High productivity, high transparence
High flowability, low viscosity and short injection time.
Low volatiles content; Fast cure
Excellent mold release, Excellent Thermal stability
Excellent compression set; Excellent resilience
High stability to ozone and ultraviolet light
Outstanding resistance to ageing
Not readily combustible, does not melt or drip
Easy-pigmentable with LSR Colour Pastes fulfill the requirement of KTW
Processing Recommendations
Ready-to-use mixtures (of the components A and B) are fed directly to the injection molding machine from the original containers by means of a metering and mixing unit. The mixture, consisting of the two components in the ratio 1:1, is injected into the heated mould. Because of low viscosity, the injection daospeed and injection pressure need to be carefully adjusted so that the injection time can be decreased. At mould temperatures of 170 - 230°C, the addition -crosslinking silicone rubber vulcanises free of dissociation products within a few seconds. Excellent flowability and easy demoulding permit fully automated production of large numbers of articles in shorter total cycle times.
SHELF LIFE:
Correctly stored in its original unopened container at room temperature (24°C). The liquid silicone rubber has a shelf life of 6-8 months from the date of manufacturing. Containers, which have been opened, must be kept tightly closed afterwards
PACKAGE:
20kg/drum part A + 20kg/drum part B and 200kg/drum part A + 200kg/drum part B.
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