DUROPTIX OE-6351 Optically Clear Two-Part Silicone LED Encapsulant for LED Package & Lens Molding

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Shenzhen Huazhisheng New Material Technology Co., Ltd.

City: dongguan

Province/State:guangdong

Country/Region:china

Tel:86--13510063180

Contact Person:
Mr.ouyang View Contact Details

DUROPTIX OE-6351 Optically Clear Two-Part Silicone LED Encapsulant for LED Package & Lens Molding

Model Number	OE-6351
Payment Terms	L/C,D/A,D/P,T/T,Western Union
Model	OE-6351
Viscosity (Mixed)	2800mPa·s (cP)
Price	9999
Specification	4kg/set
Supply Ability	1000
Brand	DUROPTIX
Certification	TDS,SDS,COA,Rohs
Minimum Order Quantity	1
Delivery Time	3-5
Durometer Shore A (JIS)	52
Category	Optically
Packaging Details	4kg
Brand Name	DUROPTIX
Place of Origin	USA

Detailed Product Description

DUROPTIX OE-6351 Optically Clear Two-Part Silicone LED Encapsulant for LED Package & Lens Molding

DUROPTIX OE-6351 is a two-part, 1:1 mix ratio, addition-cure optically transparent silicone encapsulant with low viscosity, self-priming adhesion and 24-hour pot life at 25°C, cured to Shore A 52 (JIS).

Designed for the demanding LED market, DUROPTIX OE-6351 offers high purity, moisture resistance, thermal stability and >98% optical transparency at 450 nm. The silicone absorbs thermally induced stresses inside LED packages, protecting the die and bond wires, and withstands lead-free reflow temperatures, making it suitable for modern LED assembly processes.

Property	Unit	Value
Viscosity (Part A / Base)	mPa·s (cP)	3100
Viscosity (Part B / Catalyst)	mPa·s (cP)	2400
Viscosity (Mixed)	mPa·s (cP)	2800
Specific Gravity (Uncured Part A / Part B)	—	1.02
Refractive Index	—	1.41
Working Time / Pot Life @ 25°C	hr	24
Durometer Shore A (JIS)	—	52
Heat Cure Time @ 150°C	min	180
Unprimed Lap Shear Adhesion (Glass)	MPa	2.5
Dielectric Strength	kV/mm	28
Dielectric Constant @ 1 MHz	—	3.0
Dissipation Factor @ 1 MHz	—	0.0012
Volume Resistivity	Ω·cm	1.4 × 10¹⁶
Linear CTE	ppm/°C	300
Impurity Na⁺ / K⁺	ppm	0.2
Impurity Cl⁻	ppm	0.5
Transparency @ 450 nm, 1 mm thick	%	98
Shelf Life @ 35°C (unopened)	months	6

Key Special Properties (Expanded)

Low Viscosity & Easy Processing: Part A ~3100 cP, Part B ~2400 cP, mixed ~2800 cP — enables smooth dispensing and bubble release in automated equipment.
Self-Priming / No Primer Needed: Achieves unprimed lap shear adhesion of 360 psi (2.5 MPa) to glass, good bonding to Ag-plated leads and PPA without primer.
Optical & Electrical Excellence: Refractive Index 1.41, Dielectric Strength 700 V/mil (28 kV/mm), Volume Resistivity 1.4×10¹⁶ Ω·cm.
Wide Service Temp: Operational from –45°C to 200°C long term; thermal cycling down to –55°C can be evaluated per application.

DUROPTIX® OE-6351 is used for encapsulation and lens molding of SMD LEDs, high-power LED packages, COB (Chip-on-Board) modules, and automotive / general lighting LED units requiring long-term heat & UV resistance and non-tacky high-hardness finish. It is also suitable for optical component potting where high clarity and stress relief are needed.

FAQ:

1. Who are we?

We are Shenzhen Huazhisheng New Material Technology Co., Ltd., a professional industrial adhesives and sealants supplier based in China since 2018. we serve global markets: Mainland China (60%), Southeast Asia (20%), North America (10%), and Europe (10%).

2. What products do you offer?

we supply high-performance adhesives and sealants from global leaders including: Cemedine, Dow Corning, Shin-Etsu, Araldite, and Momentive,etc.

3. How do you guarantee product quality?

Quality assurance through: Mandatory pre-production samples approval Final inspection by QC team before shipment International certifications: SGS, UL, FDA, RoHS, REACH

4. Why choose us over other suppliers?

Reliable Supply:Authentic products from top manufacturers Expert Support:Technical guidance for product selection Global Compliance:Certifications meeting target market standards Efficient Service:Customized solutions & professional support

5. What services do you provide?

Delivery:EXW/FOB/CIF Payment:USD/EUR/CNY/HKD via T/T, L/C Support:Technical consultation & logistics coordination

Product Tags: optically clear silicone LED encapsulant two-part silicone adhesive for LED molding silicone encapsulant for LED package lens

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