Capalac Aqua 2K PU-Lack

Suitable Substrates

Prime surfaces of building materials, such as dimensionally stable wooden parts, derived timber products, steel, galvanised steel, zinc sheets, aluminium, copper, unplasticized (rigid) PVC, stable existing coatings in- and outdoors.

Do not coat the following surfaces/substrates with Capalac Aqua 2K- PU-Lack:
Stainless steel, anodic/anodized coatings, bronze, brass, surfaces with permanent moisture stress such as showers and swimming pools. 
Roofing, flooring, balcony floors, travelled floors.
Limited stable and unstable wood construction elements.
Derived timber material boards and plywood boards (e.g. boards with layers of wood veneer) outdoors.  

Substrate Preparation

Wood/Dimensionally Stable Wood Construction Elements:
Sand/grind the surface of planed wood in fibre direction, clean thoroughly and remove seeping wood contents, e.g. wood resin/rosin and resin galls, cut sharp edges (Germany: See BFS Data Sheet No. 18). Impregnate wooden parts at risk of blue stain attack outdoors with Capacryl Holzschutz-Grund.
Prime with Capacryl Holz-Isogrund. 
Max. wood moisture content (WMC): 12 %. 

Iron, Steel:
Derust to industry standard SA 2½ (blasting) or ST3 (mechanically) according to DIN EN ISO 12944-4.
Prime with Capalac Allgrund, Capalac 2K-EP-Haftgrund or Disbon 481 EP-Uniprimer. 

Zinc/Galvanised Surfaces, Unplasticized (Rigid) PVC:
Wash with light ammonia solution using sanding pad according to German BFS Data Sheets No. 5 and No. 22 or clean with Multistar 1 : 5 diluted with tap (potable) water using non-woven web. Prepare large galvanised surfaces (zinc) by sweeping technique.
One priming coat of Capacryl Haftprimer. 

Aluminium, Copper:
Clean with non-woven web and Multistar, 1 : 5 diluted with tap water. Germany: Follow BFS Data Sheet No. 6.
One priming coat of Capacryl Haftprimer.

Existing Paint Coatings:
Roughen/sand the surface of existing coats slightly and/or treat with alkali. Carefully remove unstable coatings. Prime stable existing coatings with Capacryl Haftprimer. Prepare and prime substrates (when existing coatings have been removed) depending on substrate requirements.

Preparation of Material

Add the hardener (catalyst) to the base, directly before use. Stir intensely by hand or use low-speed paddle mixer (agitator; max. 400 rpm). Then pour into another clean mixing vessel and stir again very thoroughly.
The material temperature of both components should be 15 °C to 20 °C.

Mixing Ratio

Base : hardener = 9 : 1 parts by volume or 
Base : hardener = 100 g : 9.8 g parts by weight

Method of Application

Guidelines for Spray Application^✱:

	Ø Nozzle	Spray Pressure	Air Pressure	Dilution
Airless	0.010 - 0.012 inch	220 bar	–	-
Airmix/Aircoat	0.010 - 0.012 inch	200 - 220 bar	2.0 - 2.5 bar	-
Caparol NAST Wagner XVLP FinishControl 5000	NAST-Frontend (Colour: blue)	Air quantity 2/3	_	10 %
High pressure	1.8 - 2.0 mm	–	2.5 bar	15 %

^✱Specifications may vary, depending on the device/product manufacturer.

Application:
Capalac Aqua 2k PU-Lack can be applied by enamel brush, enamel roller or with spraying equipment. Particularly for spray painting the local prescriptions for environment protection and industrial safety regulations for using isocyanate containing products must be followed.
Use special brushes, suitable for "aqua-type" (waterborne) enamels , such as Orel-Mix, Friess Blueline or Wistoba 1528 Krex . On larger surfaces apply the product with a short pile (textured) polyamide (nylon) roller and directly roll over with a fine-porous foamed plastic roller or use aqua enamel type brush for reworking.

Thinning

Capalac Aqua 2K PU-Lack is ready-to-use for application with enamel brush and roller. Dilution is not necessary. 
Dilution with tap (potable) water is possible for spray application, depending on device and spraying method. 

Surface Coating System

Substrate	Use	Substrate Preparation	Impregnation	Priming Coat	Intermediate Coat 1)	Finishing Coat
Wood, derived timber products	interior	sand/clean	–	Capacryl  Holz-IsoGrund 2)	Capalac Aqua 2K PU-Lack or Capacryl PU-Vorlack 3)	Capalac Aqua 2K PU-Lack 4)
Dimensionally stable wood	exterior	BFS Nr. 18	Capacryl Holzschutz-Grund	Capacryl  Holz-IsoGrund 2)
Iron, steel	interior	derust/clean	–	Capalac 2K-EP-Haftgrund or Disbon 481 EP-Uniprimer
Iron, steel	exterior	derust/clean	–	Capalac 2K-EP-Haftgrund or Disbon 481 EP-Uniprimer
Zinc (galvanised steel)	interior/exterior	BFS No. 5	–	Capacryl Haftprimer
Aluminium/copper	interior/exterior	BFS No. 6	–	Capacryl Haftprimer
Rigid PVC	interior/exterior	BFS No. 22	–	Capacryl Haftprimer
Stable Existing Paint Coatings 5)	interior/exterior	roughening/alkali treatment	Prepare and prime defective areas depending on substrate requirements	Capacryl Haftprimer

1) Apply two intermediate coats on dimensionally stable wood component parts, in compliance with BFS Data Sheet No. 18. 2) Always apply Capacryl Holz-IsoGrund on wood with water-soluble, discolouring substances of content that leave marks (2x for knots). 3) Intermediate coat, tinted to match the finishing coat in shade. For reddish, yellowish or orange shades with low opacity (hiding/covering power) a differing colour is mixed via ColorExpress, providing for a better hiding power of the finishing coat. This colour is somewhat differing to provide for a better hiding power of the top coat. 4) An additional coat may be necessary when colours of low opacity are used (e.g. shades of yellow/red/orange). 5) Note: Adhesion must be tested in advance for powder coatings, coil coatings and other critical substrates by trial coatings on site.

Consumption

Approx. 100 - 120 ml/m² per coat.
Consumption is only a guide value and may vary, depending on substrate requirements. Determine the exact amount of material required by coating a test area on site.

Workability

(Pot Life)
2 hours at 20 °C. Higher temperatures shorten, lower temperatures extend the pot life.
Note! The end of pot life is not visible. Exceeding of pot life as well as overdosage or underfeeding of hardener leads dramatically to a loss of product properties.

Application Conditions

Low Temperature Limit During Application & Drying: 
8 °C for product, ambient air and substrate.

Drying/Drying Time

At 20 °C and 65 % relative humidity (RH).	dust dry	recoatable	cured
after hours	1 - 2	10 - 12	48

Lower temperatures and higher humidity extend the drying time.

Tool Cleaning

Immediately after use with clean water.

Special Risks (Hazard Note) / Safety Advice (Status as at Date of Publication)

Product: For professional users only.
Base:
Keep out of reach from children. Ensure good ventilation during use and drying. Do not eat, drink or smoke while using the product. In case of contact with eyes or skin, immediately and thoroughly rinse with water. Do not allow product to enter drains, waterways or soil. Clean utensils immediately after use with soap and water. Use P2 dust filter for grinding. Do not breathe spray dust. Use A2/P2 combination filter for paint spraying.
Contains 1,2-benzisothiazol-3(2H)-one, adipohydrazide, 2-methyl-2Hisothiazol-3-one. May produce an allergic reaction.
Safety data sheet available on request.
In Germany: Advice for allergy sufferers with isothiazolinone allergy: Hotline 0180/5308928
(0.14 €/minute from German landline, MTS max. 0.42 €/minute).

Hardener:
May cause an allergic skin reaction. Harmful if inhaled. May cause respiratory irritation. Harmful to aquatic life with long lasting effects. Do not breathe vapours/ spray. Do not get in eyes, on skin, or on clothing. Avoid release to the environment. Wear protective gloves/ protective clothing/eye protection/ face protection. IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER or doctor/ physician if you feel unwell. IF ON SKIN: Wash with plenty of soap and water.
Contains isocyanates. May produce an allergic reaction.

Disposal

Materials and all related packaging must be disposed of in a safe way in accordance with the full requirements of the local authorities. Particular attention should be made to removing wastage from site in compliance with standard construction site procedures.
In Germany: Only completely empty containers should be handed in for recycling. Dispose containers with residues of liquid product via waste collection point accepting old paints and
enamels. Dispose dried/hardened product residues as construction site/demolition/municipal or domestic waste.

EU limit value for the VOC content

of this product (category A/d): max. 130 g/l (2010). This product contains max. 110 g/l VOC.

Product Code Paints and Enamels

PU 50 (Germany)

Substances of Content - Declaration

Base:
Polyurethane acrylate resin, titanium dioxide, coloured pigments, mineral fillers, water, glycols, glycol ether, additives, preservative (Methyl-/Benzisothiazolinone).

Hardener:
Aliphatic polyisocyanate, glycol ether.

Further Details

See Material Safety Data Sheet (MSDS).

Customer Service Centre

Tel.: +49 6154 71-71710
Fax: +49 6154 71-71711
e-mail: kundenservicecenter@caparol.de

International Distribution: Please see www.caparol.com