Safety Data Sheet: Hempel Classic
Product Data Sheet: Hempel Classic
Removing old paint and antifouling
Removing old paint and antifouling is easy with Hempel’s Paint
Stripper, which is an effective solvent-based paint stripper. It can be used on most painted and varnished surfaces.
- You can estimate the time required by first testing on a small area.
- Apply a generous amount of Hempel’s Paint Stripperto a dry surface with a brush or roller.
- Be careful when using the product on plastic surfaces (it can damage some thermoplastics, e.g. ABS).
- Do not work on too large an area at a time.
- After application, wait 15–30 minutes for the paint film to dissolve or detach. (Antifouling paints, alkyd paints, and varnishes react fastest, whereas silicone and epoxy take longer to dissolve.)
- It is recommended to cover the treated area with aluminum foil to prevent the active ingredients from evaporating too quickly.
- Scrape off the old paint, then clean the surface with hot water and Hempel’s Boat Shampoo.
- If the paint film is old or very thick, it may require repeated treatment to remove.
Cleaning and degreasing
Thorough pre-treatment is a prerequisite for a successful painting job. The surface to be painted must be clean and free of grease.
Cleaning
Hempel’s Pre-Cleanis an effective detergent for pre-cleaning gelcoat and painted surfaces to remove fuel, oil, grease, wax, and silicone. Use before painting and for deep cleaning.• For general cleaning, use 1 part Hempel’s Pre-Cleanto 20 parts water, and for more demanding cleaning, a ratio of 1:10.• For alkaline-sensitive surfaces, such as aluminum, dilute the product with water in a 1:20 ratio.
• Do not use on untreated wood that may absorb water.
Hempel’s Pre-Cleanis also suitable for cleaning hardened paint from brushes.DegreasingRemove surface dirt, especially waxes or silicone, from a new gelcoat surface using Hempel’s Degreaser. It cannot be used with traditional one-component painting systems, as Hempel’s Degreasersolvents can damage the paint film.• Work in a well-ventilated area and use a clean, absorbent, and lint-free cloth soaked in
Hempel’s Degreaser.
• Clean an area of approximately 1 m² at a time by moving the cloth lengthwise. Change the cloth before treating the next section. Use protective gloves and safety glasses.• Wipe off any excess
Hempel’s Degreaserfrom the surface with a new dry cloth.
Product Description: Hempel’s Classic 71220 is an effective, polishing (ablative) antifouling paint that provides good protection throughout the boating season.
Recommended use: Can be used as an antifouling paint on fiberglass, wood, plywood, and steel boats. Do not paint aluminum or other light metals. Direct contact can cause corrosion. Suitable for low cruising speeds.
Flash Point: 36°C [97°F]
VOC content: 426g/L
Product code: 71220
Standard shade* / code: Black 19990
Gloss: Semi-matte
