How do you seal painted plastic?

Adhesive for painting plastic

It’s time to get down to work and give a good coat of paint to the house or office. And that simple step can give a new air or a change of look to the space, where apart from the choice of color, the preparation of the walls is key to achieving a good finish. As in any activity of reform and improvement of a space, the previous preparation will largely determine the final result obtained, so it is important to spend precious time to assess the condition of the walls or surfaces and decide what steps we must perform before applying the paint.

Depending on the case, sometimes it is necessary to dedicate time to remove the previous paint, especially if it is in bad condition, lifted and can hinder the adhesion of the new paint. In metallic or wood surfaces it is highly recommended to remove the old paint and to carry out a pickling.

For the repair to be more effective it is important to choose the correct putty for each surface and type of repair, taking into account if we only want to smooth the surface, or if we must also fill holes and cracks.

Homemade plastic primer

However, if you are on a tight budget, don’t worry because there is a way to seal your walls in a more natural way. We will require white vinegar, baking soda, dishwasher, sponge mop, vacuum cleaner and sandpaper. To start making this homemade sealer, you must vacuum the wall to remove all the dust.

Now in a bowl combine three cups of water, two cups of white vinegar, one cup of baking soda and one tablespoon of dishwashing liquid. Dip the sponge mop in the mixture and wipe the wall from top to bottom. Let it sit for 10 minutes and then rinse with water. When your surface is dry, sand it to get a smooth wall. In this way, the wall will be ready to absorb any paint, thanks to this homemade sealer.

Many of these benefits are not noticeable to the naked eye but our bank account does feel them. Others, such as the final result we get after painting, are right in front of our eyes. For example, your paint will perform better and you will use less of it. If you use this homemade sealer, the paint you apply will set more easily.

Automotive Plastic Paint

Whenever I am asked which is the finish I like the most of the different ones I have tried, I always answer that of the spray paint. It is smooth, uniform, without roller marks, without hairs of brushes or trowels. If you want to check it, just watch the following tutorials:

Spray paint is packaged in a hermetically sealed container (can) which, in addition to the paint or primer or varnish, contains a gas that propels it. Both elements are under high pressure inside.

For this reason, the first piece of advice is that you should not try to puncture a spray can even if it appears to be empty. If you do, you run the risk of product residue shooting out (like shaking a beer can vigorously before opening it).

There is a wide variety of types of spray paints: acrylic enamels, water-based, slate paint, special paints for appliances, radiators, forging… as well as primers and varnishes. Choose a paint that is suitable for the surface you are going to paint and the finish you want to achieve (matte, satin or glossy).

Paint for painting plastic crafts

Not all repairs are the same. The characteristics of the repair are different depending on whether the plastic part of the motorcycle to be treated is exterior or interior, or whether it is the fender, the bumper, the dashboard or the frame. Each repair requires a different type of work and the use of specific products.

The first factor to take into account is that paint causes adhesives to lose some of their effectiveness. Therefore, when we talk about painted plastic repairs, it must always be taken into account that the application of these adhesives must be done on the base plastic. That is to say, before applying any product it is necessary to sand the part with P80 grit sandpaper to remove the paint and then clean it. However, there are some adhesives that are effective even on painted plastic surfaces, without the need for sanding and priming, such as LOCTITE 3090, which is capable of filling gaps of up to 5 mm.