Solvent-based non pigmented primer to paste and seal wooden slats

Sika® Primer-290 DC is a slightly yellow, solvent-based primer that reacts with moisture and forms a thin layer. This layer acts as a link between substrates and adhesives. Sika® Primer-290 DC is specifically formulated to treat wood slats prior to watering with Sikaflex®-290 DC or gluing with Sikaflex®-298.

Uses:

Sika® Primer-290 DC is used to improve adhesion on teak, mahogany, Oregon pine and polyester based GRP. Ask for advice from the manufacturer and perform tests on the original substrates before using Sika® Primer-290 DC on stress cracking materials. This product is only suitable for experienced professional users. To ensure adhesion and compatibility of materials, you must perform tests with substrates in real conditions. Employmenti

Product details

Chemical base: Solvent-based polyurethane solution

• Color (CQP001-1): Colorful, slightly yellow
• Solid content: 34 %
• Application temperature: 5 — 40 °C
• Application method: Brush or spray
• Coverage: depends on the porosity of the substrate 50 ml/m2
• Flash-off time: ≥ 15 °C 60 minutes |
• Stability (CQP016-1): 12 months A
• CQP = Corporate Quality Procedures

A) Store in a sealed container vertically in a dry place at ≤ 25 °C

APPLICATION METHOD

The surfaces must be clean, dry and devoid of grease, oil, dust and contaminants. Adhesion on substrates can be improved by adding and/or combining pre-treatment processes such as abrasion and cleaning.

Application

Apply a thin but covering layer of Sika® Primer-290 DC with a clean and dry brush. Make sure the teak is completely covered by the primer but avoid excess material. Surfaces treated with primers must be dried for at least 60 minutes before sealing or gluing with Sikaflex® products. In case of spray application, contact the Technical Department of Sika Industry. The ideal application and surface temperature is between 15 °C and 25 °C. Sika® Primer-290 DC must be applied once. We must be careful to ensure that this single application gives a sufficiently dense coverage. Consumption and method of application depend on the specific nature of substrates. Securely shut down the container immediately after each use. For advice on how to properly select and set spray equipment, contact the Sika Industry System Engineering Department

Important Notes

Sika® Primer-290 DC is a moisture reactive system. In order to maintain the quality of the product it is important to close the container with the inner plastic coating immediately after use. Once the surface pre-treatment operation is completed, the cap must be screwed. Dispose the product about a month after opening if used frequently or after two months in case of rare use. The 30 ml packages are only for single application. If you notice gelification, separation or significant increase in viscosity, immediately discard the primer. Never dilute or mix this product with other substances. If used on transparent or translucent substrates such as plastic, etc., adequate UV protection is required.

Disclaimer

The technical advices relating to employment, which we provide verbally or in writing as customer or operator assistance based on our experiences, corresponding to the current state of scientific and practical knowledge, are not challenging and do not demonstrate any contractual legal relationship or an accessory obligation with the sale contract. They do not dispense the buyer from the responsibility to personally try our products with regard to their suitability for the intended use. For the rest, our trading conditions are valid.