PPG 2K Etch Primer Spuitbus 400ml (2024)

FAQs

What is the mixing ratio for 2K etch primer? ›

Mixing ratio: 4 parts primer 1 part 2K hardener then add 1-% - 15% 2K thinners to total volume mix, this can vary depending on the spray gun set up. STIR WELL and only mix the amount of material you intend to use in one application.

Etching is used for surfaces that are to smooth or have a hard time getting a good mechanical bond such as glass, concrete, polished metal, and so on some primers are more job specfic than others but in general etching primer is used when you have trouble getting primer to stick and regular primer is used for ...

1K – suited to interior use, low traffic areas, and places less prone to general wear and tear. 2K – suited to exterior use, heavy use areas, high temperature surfaces and other harsh environments.

The most important thing to remember at this point is spray one wet coat of 2K primer and let it sit for 5 minutes before applying the second coat.

Urethane Primer contains more solids than lacquer primer and you will use about half the amount to do the same job. We recommend you use the MP-2K Urethane Primer. It has very easy to sand properties, high build and cures fast. Mixes 4:1 with activator and does not need reducer.

While there are a few etch primers that claim you can paint directly over them, it's generally not recommended.

Can you paint over primer without sanding the car? Technically, yes, you can do that. Some circ*mstances don't require sanding the existing paint and primer before repainting. If you choose this route, the car's surface might show minimal damage like puncture holes, body scratches, dents, and cracks.

If recoated within 24 hours, additional sanding of self etch primer is not required. After 24 hours, lightly dry sand / scuff with 400 grit or finer paper, then recoat with self etch primer (step 7).

protection. WHEN SHOULD THEY NOT BE USED? Etch primers offer inadequate corrosion protection in corrosive environments such as near the coast or around swimming pools. In such cases, a zinc-rich primer and high build barrier coat should be used as part of a heavy-duty, two-pack protective coating system.

How many coats of etch primer do you need? ›

For best adhesion, apply 2 or 3 thin coats and allow each coat to dry for 2 minutes before applying the next coat. Allow the final coat of Self Etching Primer to dry for a minimum of 3-4 hours before dry sanding, or 15 minutes before wet sanding with #400 grit sandpaper. Do not use near open flame.

Once applied the Etch Primer needs to be left to dry, both to allow the etching process to work and to allow the evaporation of the solvents contained within the paint. All Etch Primers need to be left for a minimum of 24 hours at a temperature of 18 - 20 degrees Celsius to dry properly.

So basically it depends on the use. If shooting a number of coats of SPI 2k primer for build then it needs to be sanded. If shooting a single coat or as a sealer your good.

The "k" in primer stands for component, but in Europe it is spelled with a "k" (ie Komponent) So a 1k primer means only one component so just the primer is needed to spray on a panel. 2k primer means 2 different components so the primer and a activator is needed before spraying on a panel.

Improved durability: Epoxy primers are known for their superior durability. They are resistant to abrasion, impact, and other forms of mechanical damage, which makes them ideal for use in harsh environments. Etch primers are not as durable and may require more frequent maintenance to keep the metal surface protected.

Spray application: All of our Etch Primers will need to be diluted 1:1 (50% thinner, 50% primer) using Paintman Etch Thinners 2691, thus ensuring the highest quality finish and maintaining correct drying times.

Application: Primer: Stir 2K Acrylic Urethane Primer thoroughly before use. Mix 4 parts primer to 1 part activator. Apply 2 -3 medium wet coats, allowing 10 - 15 minutes flash time between coats. Non-Sanding Sealer: Mix 4 parts primer to 1 part activator to 1/2 part reducer or up to 2 parts zero VOC reducer.

1. This primer consists of two Packs, one is Base & another called Hardener. 3. Mix the desired quantity of Base & hardener (Mixing Ratio is 4: 1 Base to Hardener by volume).

The mixing ratio by weight is 7 parts 2K 4:1 HS HIGH BUILD PRIMER : 1 part 2K PRIMER HARDENER. Up to 20% by weight of 2K FAST THINNER may be added as required. 1: As a high build primer use minimum amount of thinner and apply 23 coats with 10 mins.