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Hempel Underwater Primer
At a glance
- 1-component primer
- Quick-drying
- Excellent water resistance
Fast delivery throughout Europe
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Hempel Underwater Primer is a high-quality one-component primer. The fast-drying primer has excellent water resistance. This makes Hempel Underwater Primer the ideal primer to use before applying a new Hempel antifouling. This primer is also suitable as a sealer on old antifouling or as an anchoring layer on a surface that has been pretreated with epoxy primer.
Hempel Underwater Primer can be applied directly to the hull or a primed surface. It has excellent adhesion to polyester, wood and steel substrates.
Benefits of Hempel Underwater Primer
- Fast drying primer.
- One-component primer.
- Excellent water resistance.
- Suitable as primer for antifouling.
Directions for use
Hempel Underwater Primer is easy to apply by brush, roller, spray or paint pad. The minimum processing temperature is 5°C. Avoid working in direct sunlight.
- Always ensure that the surface is lightly sanded, clean, grease-free and dry before applying Hempel Underwater Primer.
- Stir the contents well before application.
- Apply Hempel Underwater Primer.
- Previously coated surface - apply 1 coat of primer as a sealing or anchoring coat.
- Previously pretreated surface - when the previously applied epoxy primer is still tacky, apply 1 coat of the product as an anchoring coat.
- Wooden surface - apply 1 coat of primer first, diluted with the specified thinner (max. 20%). Then apply 2 coats of Underwater Primer. If necessary, add thinner to aid application (max. 5%).
- After approximately 3 hours (at 20°C) the primer is hand-dry and ready for recoating.
- You can now apply a Hempel antifouling of your choice.
Note: always wear protective clothing, gloves and a suitable vapour mask when working with Hempel Underwater Primer!
Specifications
Contents: 0.75 L and 2.5 L
Colour: aluminium/grey
Gloss: matt
Coverage: approx. 7.8 m2/L
Touch dry: 3 hours (at 20°C)
Overcoating: 3 hours (at 20°C)
Application method: brush, roller, spray or paint pad
Thinner: Hempel Thinner 811 (No. 1)
Product properties
The key technical properties clearly listed in one place.
- Article number
- BOO001200
-
The materials, substrates or tasks a product is intended for. A general claim such as 'suitable for plastics' does not mean it works with every type of plastic; the specific substrate and its preparation still matter.
- Polyester boten, Stalen-boten, Houten boten
-
The technical product category, such as primer, resin, hardener or cleaner. It explains the product's purpose and helps you find other products with a similar function.
- 1K Primer
-
The overcoating interval tells you when the next layer of paint, varnish or coating may be applied. Many multi-coat systems specify both a minimum and a maximum interval:
- Minimum overcoating time: the previous layer is dry or cured enough to accept another coat.
- Maximum overcoating time: the period during which the next coat can bond without extra surface preparation under the stated conditions.
Overcoating too early can affect drying or the finish. Once the maximum interval has passed, cleaning and sanding may be needed to ensure adhesion between coats. Temperature and film thickness affect the waiting times.
- 3 hours (20 °C)
-
Consumption or coverage describes how much product is needed for a given surface area. Consumption may be stated in g/m² or kg/m², while coverage is often given in m²/L or m²/kg. A consumption of 0.2 kg/m² means a theoretical 200 grams per square metre. Actual use depends on film thickness, substrate absorbency, application method and waste.
- Approximately 7.8 m²/L
-
A specific thinner that can be used, where permitted, to adjust a product's application properties or viscosity. The correct thinner and maximum quantity depend on the product. Incorrect thinning can affect coverage, drying and curing.
- Hempel Thinner 811 (No. 1)
- Net contents
- 2.5 L, 750 ml
-
The application or processing methods specified by the manufacturer, such as brushing, rolling, spraying, casting or hand laminating. The chosen method can affect consumption, layer thickness and finish.
- Brush, Roller, Spray, Paint pad
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