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Melkib UV 1200EL 50 ml flexible light-cured adhesive, transparent
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Description
Product description
MELKIB 1200EL is a single-component, transparent adhesive cured by UV/VIS radiation. It delivers very short process times, a flexible bond line and resistance to yellowing. It suits applications that require optical clarity and dimensional stability, including coating and potting of LED components.
Benefits & applications
✅ Rapid UV/VIS cure: full properties achieved within seconds after exposure (reference LED 365 nm, approx. 1 J/cm²).
✅ Clear, aesthetic bond: anti-yellowing – suitable for optical parts and LED assemblies.
✅ Flexible bond line: approx. Shore A 40; elongation at break ~260% – compensates thermal expansion mismatch.
✅ Wide substrate range: metals, plastics and ceramics*.
*Always run adhesion trials; UV transmission through the substrate affects cure depth.
Technical parameters
| Parameter | Value |
|---|---|
| Colour / appearance | Transparent (before and after cure) |
| Net content | 50 ml |
| State / viscosity (25 °C, Brookfield) | 1000–1400 cPs |
| Bond hardness | approx. Shore A 40 |
| Elongation at break | approx. 260% |
| Linear shrinkage | approx. 2% |
| Water absorption (24 h) | < 3.0% |
| Service temperature | approx. −40 °C to +120 °C |
| Curing – spectrum | UV/VIS 200–400 nm |
| Curing – LED (reference) | 365 nm; dose approx. 1 J/cm² |
| VOC | 100% solids (no solvents) |
| Transport classification | per TDS/SDS: n/a |
| CLP signal word | per SDS: n/a |
| CLP classification (selected H) | per SDS: n/a |
| Note on diisocyanate training | Not applicable |
| Product symbol (SKU) | MB-0310 |
| Manufacturer | MELKIB |
UV/VIS curing parameters
Source: UV/VIS 200–400 nm (e.g., LED 365 nm).
Recommended dose: approx. 1 J/cm² (adjust to geometry and substrate transmission).
Notes: cure speed and depth depend on intensity, wavelength, exposure time, lamp distance and light transmission through the bonded parts.
Application guide (brief)
1) Prepare surfaces: clean, dry, degreased. 2) Limit exposure of the uncured adhesive to ambient light before curing. 3) Apply from bottle/syringe or with benchtop dispensers. 4) For stress-cracking-prone plastics, run trials and consider cooling during exposure.
Storage
Up to 12 months in the original, unopened container. Store cool and dark (approx. 5–25 °C), away from heat sources and light.
FAQ
Will it cure through glass? Yes, provided the glass transmits the relevant spectrum (e.g., 365 nm) and the delivered energy is sufficient. Low-UV-transmission glass may require longer exposure.
Is it suitable for PP/PE or PTFE? Adhesion to very low-surface-energy substrates (PP, PE, PTFE) is limited – trials and/or a primer are required.
Is it food-contact approved? Industrial product; no declaration for food contact.
How to set exposure time? Start with LED 365 nm and ~1 J/cm², then fine-tune for lamp power, layer thickness and substrate transmission.
Parameters are based on a TDS aligned with UNIMER 398. Actual results depend on process conditions and materials. Always validate on production samples; for EHS, follow the current SDS.
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