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Two Part Optically Clear Silicone

With the popularity of automobiles, the application of high-transparency lens headlights has gradually spread to medium and low-end models, two-part optically clear silicone rubber material has been widely used in LED packaging. The traditional glass optical lens can no longer meet the market demand due to its fragility, complex processing, easy yellowing, and other defects. The optical-grade liquid silicone raw material with unique characteristics such as light transmittance of 95%, UV resistance, physical stability, etc. solves the problem of yellowing and has become a new favorite for manufacturing lens headlight packaging.

Part Number: YR250-70KS AB

Mpas（CST）: 18

Shore A(hardness): 70

Ratio（A/B）： 1:1

Batch MOQ(KG): 20

Lifetime of product : 12 Months

Appearance: High transparency

Certificate Obtained： FDA,ROSH,MSDS
Lead time: 10-12days
Payment terms: 30% TT, the balance before shipping

Production capacity: 100 Tons/day

Package: 20KG(A part)/barrel+20KG(B part)/barrel +Pallet

Transportation way: Land/sea/air

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Product Description

Unique characteristics
Good flexibility
High chemical resistance
High impact resistance
Excellent transparency for improved light transmission efficiency
UV resistant, No yellow under a prolonged high-temperature environment
High heat resistance for long-term normal use at -40°C to 150°C

Main use

It is suitable for the packaging of street lamps, LEDs, optical devices, solar lenses, etc.

Certificate

RoHS, FDA, MSDS, REACH

Product Appearance

High transparency

Two part Packaging

A: 20KG/pail,B: 20KG/pail

A: 200KG/pail,B: 200KG/pail

Preservation and Attention

Under a normal temperature environment, the storage period is 12 months.

After the product is opened, it should be used up within 3 days. Unused products should be sealed and stored in a cool and safe place.

Optical LSR Parameter

Model	Viscosity（cps）	Hardness（Shore A）	Density (g/cm³)	Resilience (%)	Tensile strength (MPa)	Elogation at break (%)	Tear strength (KN/m)	Tensile set(%）	light transmittance (%)
Test Standard	DIN53019	GB/T531.1	GB/T533-2008	GB/T1681- 2009	GB/T528	GB/T528	GB/T529	GB/T528	-
YR250-40KS AB	13	40	0.99	20	3	180	7	3.2	92%
YR250-50ks AB	14	50	0.99	35	4	150	9	3.2	95%
YR250-60KS AB	16	60	1.02	45	5.5	130	10	3.2	95%
YR250-70KS AB	18	70	1.05	55	7	100	10	3.2	95%
YR250-70KS AB	60	70	1.01	55	7.5	90	10	3.2	95%
Remark	Vulcanization conditions：A/B is evenly mixed，Mold:140mm×120mm×2mm,175℃×5min compression molding.Assistance with specifications are available by contacting our engineers.