FAQs

What do primers-sealers do?

Primers-sealers provide a variety of performance properties such as stain blocking, corrosion inhibition, surface filling, and enhanced hide. Their main function is to satisfy the porosity of the surface so the topcoat does not penetrate into the substrate. The result is a surface, when top-coated, that looks better and lasts longer.

What is an Enamel?

Enamel is an Oil-based, stain resistant, washable topcoat which is characterized by its ability to form a smooth, hard surface. Typically associated with a high gloss (Berger Super Gloss Enamel), but may also include lower degrees of gloss.

How should mildew be removed?

Remove all mildew from the surface by scrubbing with a chlorine bleach solution (one part bleach and three parts water) or a commercial mildew remover, while wearing rubber gloves and eye protection. Rinse thoroughly and paint as soon as the surface is dry to avoid recontamination.

What needs to be done if I’m repainting over gloss paint?

Lightly sand to dull the sheen and clean the surface thoroughly. When recoating with an oil-based paint (Berger Super Gloss Enamel or All-rounder Matt Enamel), you may paint directly over glossy surfaces as long as they are clean. If you are repainting with water based paint, the previous coat will have to be scrapped to Primer before applying Berger Robbialac Elegance Emulsion or Berger Robbialac Plastic Emulsion.

Is a natural bristle brush better than a synthetic bristle brush?

This depends on the type of paint you plan to use. Natural bristle and synthetic brushes may be used with oil-based paints. Only synthetic bristle brushes should be used with water-based paints.

How do you determine what type of roller cover to use?

Use a quality cover for an easier, more uniform application. Use a quality synthetic fiber roller cover. A 3/8″ to 1/2″ nap roller cover is recommended for wall paint being applied to smooth drywall or plaster. Rough plaster and stucco walls may require a 3/4″ to 1″ nap cover. Use a 1 1/4″ nap cover when painting concrete block or other extremely rough surfaces and the 3/16″ nap cover is recommended to apply an ultra smooth finish when using enamel.

Can a Water Based paint be applied over an alkyd enamel?

Traditionally, water based finishes cannot be applied to an alkyd enamel without proper surface preparation which includes sanding, cleaning, and priming.

Is there a paint that can be used to prevent moisture from seeping through basement walls?

A product containing Portland cement such as Berger Water Proofing System can be used to waterproof masonry surfaces. Extreme moisture leakage, however, may require more extensive measures such as applying a vapor barrier material to the exterior surface of the walls, or contacting a certified waterproofing contractor to evaluate and repair the problem.

My windows have been painted shut. How do I open them?

Trim along the sealed area with a knife and gently apply pressure to separate.

What causes exterior paint to chalk?

Some degree of chalking is normal. Some paint manufacturers have even touted this as a “self-cleaning” process. However, excessive film erosion can result in unsightly heavy chalk. Excessive chalking is caused by the disintegration of the paint film during weathering. Some common causes of heavy chalking include application to an unsealed surface, overspreading the paint, or poor quality paint. All can lead to premature breakdown by the weather.

Can paints be applied in cool weather?

Most water-based or acrylic paints should not be applied when temperatures are below 50° F. Alkyd/oil based paints may be applied in temperatures as low as 40° F.

Why is it not recommended to paint in direct sunlight?

Paint needs to be liquid for a period of time for proper penetration and adhesion after application. The heat from the sun can cause the outer layer of the paint film to dry prematurely which could result in solvent entrapment, which can cause blisters to form.

What is the most common cause of blistering and peeling paint on exterior wall?

The most common cause is moisture. But blistering can also be caused by painting in direct sunlight, inadequate surface preparation, or using a low quality exterior paint.

Can aluminum or vinyl siding be painted?

Vinyl siding or new aluminum may be painted with a 100% acrylic finish without priming, as long as the surface is clean and dry. Weathered aluminum needs to be cleaned and then primed with an oil based primer before applying the acrylic topcoat. When painting vinyl siding, be sure that the color chosen is a shade no darker than the original color because dark colors absorb heat from the sun and may cause warping or buckling.

What steps are involved in painting my metal lawn furniture?

Wire brush to remove any loose or chipping paint, sand any rusted areas, spot prime those areas with a rust inhibitive primer like Berger Red Oxide Primer or Zinc Chromate Yellow Primer. Finish with an oil based top coat like Berger VIP Super Gloss Enamel.

What is the best way to “rejuvenate” an old brush with dried paint in it?

Dried water-based paint can be removed by soaking brushes in denatured alcohol and cleaning with a brush comb. You could also use a commercial brush cleaner for synthetic brushes. Simply mix with water and soak brushes to remove dried paint. Oil based paint can be removed by soaking brushes in a liquid brush & roller cleaner which is especially formulated for oil based paints.

What do I do with old leftover paint?

A small amount of water-based paint may be allowed to dry out naturally and deposited in the trash. For oil-based paints, check with your local environmental agency for a hazardous waste disposal facility near you.

What size brush should I use?

Let the surface you are painting be your guide. The larger the surface, the larger the tool you will need. For exterior siding, use a 4″ brush. Use a 3″ brush for exterior gutters. For painting interior trim, use a 1″ to 2 1/2″ brush. The most important guide, however, is to select a brush that is comfortable to use.