Chemlok® 220LF is a solvent-borne covercoat adhesive formulated to be applied over Chemlok® 205 primer for high-performance metal-to-rubber bonding during vulcanization. Designed for a wide range of elastomers — including natural rubber (NR), SBR, CR, NBR and polyisoprene (IR) — Chemlok 220LF offers excellent environmental resistance (heat, water, salt spray, oils and many chemicals) and is formulated without heavy metals. It applies easily by spray, dip, brush or roll and cures during normal rubber vulcanization cycles for durable bonded assemblies.
Chemlok 220LF (LORD / Parker)
Chemlok 220 (covercoat family)
Chemlok® covercoat adhesives
| Property | Typical Value / Range |
|---|---|
| Appearance | Black liquid. |
| Viscosity (cps @ 25°C, Brookfield LVT, Spindle 2, 30 rpm) | 150 – 500 cps. |
| Density | 1000 – 1100 kg/m³ (≈8.3 – 9.2 lb/gal). |
| Solids content (wt%) | 25.0 – 29.0% . |
| Flash point (Seta) | 27°C (81°F). |
| Solvents | Xylene, Perchloroethylene. |
| Recommended dry film thickness | Chemlok 205 primer: 5.1–10.5 µm (0.2–0.4 mil); Chemlok 220LF: 12.7–25.4 µm (0.5–1.0 mil). |
| Shelf life | 12 months from manufacture when stored unopened at 21–27°C (70–80°F). |
| Typical application methods | Spray, dip, brush, roll coat. |
Note: The above specifications are provided for reference purposes only. For precise and up-to-date technical details, please contact our marketing team.
Reliable, high-strength metal-to-rubber bonds when used with Chemlok 205 primer.
Good resistance to heat, water, salt spray, oils and many chemicals.
Environmentally preferred formulation (no heavy metals).
Easy to apply by common industrial methods (spray/dip/brush/roll).
Bonding elastomer components to steel, aluminum and other rigid substrates for automotive, power generation, industrial vibration isolators, hose assemblies, seals/gaskets and molded bonded parts.
Primer + Covercoat: Use Chemlok® 205 primer first, allow it to dry fully, then apply Chemlok® 220LF as covercoat. Typical dry film thickness: Chemlok 205 — 5.1–10.5 µm; Chemlok 220LF — 12.7–25.4 µm. For spray application, dilute with Reducer 102. Typical spray dilution: 25–50% Reducer 102. Allow 45–60 min room temperature drying (or use moderate oven drying 65–93°C) before molding. Actual film thickness, dilution and drying conditions must be optimized for rubber compound and molding process.
Disclaimer (dosage & use): The guidance above is summary information only. Always consult the product’s current Technical Data Sheet (TDS) and Safety Data Sheet (SDS) and perform qualification tests for your exact rubber compound, metal substrate and process conditions. Lab Line Enterprises (dealer) does not assume responsibility for misuse; testing by trained personnel is required.
Store in original, tightly closed containers in a well-ventilated area at 21–27°C (70–80°F). Do not store near heat, sparks or open flame. Avoid excessive humidity. Shelf life: 12 months unopened. Before use read the SDS and label for safe handling. Product is for industrial/commercial use only and should be applied by trained personnel.
Chemlok® 220LF Adhesive (Parker LORD) is a high-performance metal to rubber bonding adhesive used with Chemlok® 205 primer for strong, durable bonds. Suitable for elastomers like NR, SBR, NBR, CR, and IR, it delivers excellent resistance to heat, water, oils, salt spray, and chemicals, making it ideal for automotive, industrial, and engineering applications such as mounts, hoses, seals, and gaskets. Easy to apply by spray, dip, brush, or roll, Chemlok 220LF is formulated without heavy metals for safer and reliable performance.
Available in 1ltr and 4 ltr kg pack sizes, this adhesive is supplied by Lab Line Enterprises, trusted Chemlok dealer and supplier in India. We provide all-India shipping and courier delivery with the best price and technical support. Contact us today for bulk orders, quotations, and expert guidance.
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