Solar collectors Denberust black

DENBERUST BLACK’ SUN LIGHT RECEIVER  ZINC PHOSPHATE  SYNTHETIC ANTI-RUST PRIMER AND TOP COAT FOR SOLAR SYSTEMS

For painting solar collectors and solar energy systems. Used as a foundation and top. The shade and the low gloss allow maximum absorption of the sun’s heat.

Characteristics:

• Maximum heat absorption capacity due to the shade and deep matte shine.
• Excellent resistance to outdoor conditions.
• Excellent protection against rust.
• Excellent adhesion to steel, black iron and galvanized sheet metal.
• Easy to apply and dries quickly.
• Quick drying, ready for repainting and/or coating on the same day and even within a few hours in the summer if necessary.
• High coverage area.
• Contains zinc phosphate that creates durability and resistance to the development of rust in the long term.

Uses:

• Painting solar collectors in different solar systems.

Black anti-rust paint absorbs heat, stores heat, is rich in soot for painting solar collectors

Technical data:

• Theoretical coverage – 1 liter for about 20 square meters.
• Recommended layer thickness – 25-35 microns.
• Recommended number of layers – 2
• % solids by volume – 55% < (T.I. 785 part 17).
• % solids by weight – 65% <
• Flexibility – 1 mm (sheen)
• Grinding minutes – up to 20 microns (Ti 785 part 15 – up to 60 microns)
• Density – 1.15-1.35 gm/cm ³
• Resistance to immersion in water – no bubbles, no softening, no change in adhesion
• Viscosity – 1.2-1.4 sec (HAAKE) 78-92 kerbs at 200 revolutions per minute after manual mixing for 2 minutes (TI 935 section 302), after diluting 10% with thinner – 65 kerbs. After 10 days storage at 42 degrees Celsius – Proximity will increase up to 5 Krebs.
• Adhesion – cris cross cut “0” test (T.I. 785 part 27 film 50 micron 7 drying days)
• Stiffness – 3 Dg < (Ericsson)
• Abrasion – 120 microns – 1050 cycles (Gardner) ASTM, American standard ASTM D4060 dry film thickness 200 microns, weight loss – 2 grams per 500 cycles (standard – up to 2.5 grams authorized loss).
• Salt chamber – 120 hours (ASTM B-117) without rust spots.

Containing:

• synthetic resin.
• Melanins, soot pigments.
• Special plasticizers.
• zinc phosphate.
• Solvents, additives.
• Sictives

Color:

• black.

Gloss:

• Matt.

Touch drying :

• 1-2 hours
• Drying for treatment – 10 hours, drying between layers – 8 hours, final drying – 16 hours.

Application methods:

• Brushing, rolling, spraying.

Dilution:

• Brushing/rolling – 10% mineral turpentine
• Spraying – 30%-20 thinner D18 pressure 3-4 atm
• Airless – 0-5% thinner D18, “0.018” nozzle – for a thin layer. “0.021” nozzle for a thick layer.
• Immersion – 100% diluted D18

Area preparation:

• Chemical – degreasing with degreaser M, rust removal with degreaser 3000. f
• Mechanical – sand cleaning to grade 2.5 SA/ steel brush ST-3 and
• Thorough cleaning of dust, grease, dirt and loose paint. and

Packing:

• 2.5 liters, 5 liters, 18 liters. and

This technical specification is for non-binding general information only. and

Produced by Denber Paints and Coatings Israel Ltd. , and

For the full specification:  Black Denberust collectors for solar collectors