Clear PU Ceramic Potting Compound Glue For LED Light Strip FPC PCB Customized BZ-703

Cost-Effective Clear PU Potting for LED Flex Strips

703-RoHS is a transparent polyurethane potting compound engineered for LED flexible light strips, primarily for indoor use. It provides strong adhesion to LED chips and FPCs while retaining excellent flexibility. The material offers high curing efficiency, significantly boosting production throughput for encapsulated strips. With competitive pricing and full RoHS compliance, it delivers a budget-friendly transparent polyurethane solution without compromising performance.

1. Two-component system with straightforward processing and moderate flowability.
2. Complies with RoHS environmental requirements.
3. Designed for potting or coating of economical LED flexible strips and soft light strips.

Parameters		Hardener BZ-703-RoHS A	Resin BZ-703-RoHS B
Before curing	Appearance	Light yellow clear liquid	Light yellow clear liquid
	Viscosity(mPa·s.25℃)	3800±1200	750±250
	Initial mixed viscosity(mPa·s.25℃)	1550±350
	Density(g/cm³.25℃)	1.06±0.05	1.02±0.05
Mixing&Curing	Mix ratio(by weight)	A:B=1:1
	Pot life 130±30g(min.25℃)	12±4min
	Curing condition	Room temperature curing
	Surface drying time 30g(H.25℃)	3±1
	Curing time 30g(H.25℃)	6±2
	Curing time 30g(Heated)	60℃ heated 1±0.5H
After curing	Hardness (Shore A)	48±8
	Temperature resistance(℃)	-40~65℃
	Water absorption(24H)	≤1.0%
	Surface resistivity (Ω/sq)	≥1.0×1011
	Volume resistivity (Ω.cm)	≥1.0×1011
	Tensile strength(MPa)	≤3
	Elongation at break(%)	≥200%
	Dielectric constant(at 50Hz)	≥6
	Breakdown voltage(kV/mm)	≥10

Product Applications

LED Flexible Strip Light: This cost-effective transparent polyurethane material is designed for low-temperature environments, featuring excellent flexibility and rapid curing within 1-2 hours. It significantly enhances production efficiency in LED strip manufacturing.

1. Pre-potting Preparation: Calibrate scales, prepare potting tools, cleaning tools, check machine settings, check vacuum pump force, etc.
2. Product Pre-treatment: Place product on a level surface or fixture. Remove dust, clean, degrease, and dry if necessary.
3. Accurate Proportioning: Manual operation requires precise mixing according to the specified ratio and recording. Machine potting requires calibrated ratios and first-article confirmation is recommended.
4. Mixing & Stirring: Manual operation requires thorough stirring or using electric stirrers to ensure homogeneous mixing. Machine potting requires sufficient stirring speed, adjust as needed.
5. Uniform Potting: Manual operation should be done in small, multiple batches to ensure uniformity. Machine potting should follow the programmed path for quantitative dispensing.
6. Inspection or Secondary Potting: After potting, visually inspect as needed. Perform touch-up, bubble removal, or secondary potting if required.
7. Curing: Allow the potted and inspected products to cure at room temperature or with heat assistance (recommended 60°C if needed), according to product and process requirements.
8. Final Product Confirmation: Perform visual inspection and performance testing as required by the customer.

1. Hardener: Typically 10KG / 20KG/ 200KG metal or plastic drums.
2. Resin: Typically  10KG / 20KG / 200KG metal or plastic drums.
3. Store and transport as a general chemical product.
4. Store sealed, protected from light at room temperature. Shelf life varies from 6 to 12 months depending on packaging; please refer to the expiry date on the shipping package.
5. When temperature drops to 15°C or lower, the hardener or resin should be stored in a warm place or heated before use for potting. Specific heating recommendations depend on the temperature drop; please communicate and consult with us.