multi fuller shs 4:1 acrylic primer white 3.75l

Made with the Highest quality 2K acrylic Primer with great adhesion to steel, aluminium, zinc coated steel, polyester putties and previously painted surfaces.

HS product with high solid content which gives perfect filling. Dedicated for car body repairs.

Advantages

• Great adhesion to difficult substrates.
• Good filling and isolating substrates.
• Easy to mix and apply.
• Very good stability on vertical surfaces.

Substrates

• Multi Fuller SHS 4:1 Primer can be applied over:
• Steel and aluminum after sanding and degreasing.
• Zinc coated steel after sanding and degreasing.
• Sanded Glass Fibre (GFK/GRP).
• Polyester putties,
• Wash primers.
• Epoxy fillers.
• Old or factory finishes in good condition after sanding

Good surface preparation is necessary to achieve the best results of repairs. Recommended sand paper with grits as follows:

• sanding by hand (dry or wet ) : P280-P320 
• sanding by machine (dry) : P180-P220.

Mixing ratio by volume

Filler: 4

Hardener: 1

Thinner: 10% (filling primer), 20% (grounding primer)

Stir well smooth mixture is achieved.

Spraying viscosity

40÷50 seconds at 20°C (filling primer )

25÷30 seconds at 20°C (grounding primer).

Pot life

Approx. 60 minutes at 20°C

Number of layers

1÷3 layers; 60÷300µm depending on the size of the gun nozzle.

Parameters for RP spray gun

Nozzle: 1,6÷2,0 mm; Pressure : 2,0-2,2 bar.

Parameters for HVLP spray gun

Nozzle: 1,5÷1,9 mm; pressure inside the nozzle: 2,0 bar.

Evaporation time

Between coats: 5÷10 minutes

Before baking: 5÷15 minutes

Evaporation time depends on temperature and film thickness.

Curing time

• At 20°C:
• Filling primer /130÷300 µm/ – ready to sand after drying overnight.
• Grounding primer /60÷130 µm/ – ready to sand after 3÷4 h.
• At 60°C object temperature:
• Filling primer /130÷300 µm/ – ready to sand after baking for 35÷40 minutes and cooling dawn (about 2 hrs.).
• Grounding primer /60÷130 µm/ – ready to sand after baking for 25÷30 minutes and cooling dawn (about 2 hrs).
• Temperature below 20°C significantly increases the hardening time.

IR drying

• Filling primer /130÷250µm/: 15÷20 minutes of short wave.
• Grounding primer /60÷130 µm/: 8÷10 minutes of short wave.
• Do not exceed the temperature of 60°C.
• Use according to recommendations of manufacturer.
• Wait 10 minutes before IR drying.

Dry sanding

Mechanical Sander: P360-P500.

Hand sanding: P280-P320.

Wet sanding

Hand sanding: P800-P1000.

Grinding machine: P600-P1000.

Further work

• 2K acrylic fillers can be directly over coated with:
• 2K acrylic top coats
• 1K base coats

General notes

• Do not exceed recommended doses of hardener!
• The best repair results can be achieved at room temperature. Temperature in body shop and temperature of a product should be the same.
• When working with 2K products, it is recommended to use personal protection equipment. Protect the eyes and respiratory system.
• Clean the guns and equipment immediately after use.
• The rooms should be well ventilated.
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Caution: To maintain safety, always follow the instructions given in the MSDS for the products.