LORD Chemlok® 205 primer is designed for use under Chemlok covercoat adhesives to bond a wide variety of vulcanized and unvulcanized rubber compounds to metals and other rigid substrates. It is composed of a mixture of polymers, organic compounds and mineral fillers dissolved or dispersed in an organic solvent system.

1. Features and Benefits
- Versatile – can be used as a primer under a wide variety of Chemlok covercoat adhesives such as the Chemlok 220 series, Chemlok 230 series, Chemlok 250 series or Chemlok 6000 series adhesives.
- Easy to Apply – applies easily by brush, dip, spray or roll coat methods; suitable for existing production lines.
- Durable – provides rubber tearing bonds and excellent environmental resistance when used in combination with Chemlok covercoat adhesives.
- Convenient – can be used as a one-coat adhesive to bond some nitrile rubber compounds to rigid substrates during vulcanization.
Chemlok®  205 Primer and/or Adhesive 

2. Typical Properties

3. Application
Surface Preparation – Thoroughly clean metal surfaces prior to primer application. Remove protective oils, cutting oils and greases by solvent degreasing or alkaline cleaning. Remove rust, scale or oxide coatings by suitable chemical or mechanical cleaning methods.
- Chemical Cleaning
Chemical treatments are readily adapted to automated metal treatment and adhesive application lines. Chemical treatments are also used on metal parts that would be distorted by blast cleaning or
where tight tolerances must be maintained. Phosphatizing is a commonly used chemical treatment for steel, while conversion coatings are commonly used for aluminum.
- Mechanical Cleaning
Grit blasting is the most widely used method of mechanical cleaning. However machining, grinding or wire brushing can be used. Use steel grit to blast clean steel, cast iron and other ferrous metals. Use
aluminum oxide, sand or other nonferrous grit to blast clean stainless steel, aluminum, brass, zinc and other nonferrous metals. 

4. Shelf Life/Storage
Shelf life is two years from date of shipment when stored at 21-27°C (70-80°F) in an original, unopened container. Do not store or use near heat, sparks or open fl ame.

5. Package
1kg/can, 3.5kg/can