PROBLEMS & SOLUTIONS
Peeling
Peeling is the loss of paint due to poor and insufficient adhesion. Peeling may affect the primer and top coat, or multiple coats of paints
There are several reasons that can cause the peeling of paint:
a. Inadequate or the lack of proper surface preparation.
b. Applying a solvent-based paint over a wet surface.
c. Seepage of moisture through unsealed joints, worn sealant or leaks in roofs or walls.
d. The use of low quality paint.
e. Applying paint on a substrate that has damage due to blistering.
f. Excess moisture escaping through the exterior walls. This scenario is more likely if solvent-based
paint was used.
Where peeling has become a problem, it is always advisable to try and identify and eliminate the source of the moisture. Prepare the surface by removing all loose paint with a scraper or a stiff wire brush and sand down carefully. Make sure that all dust is removed and apply the appropriate quality Plaster Primer. Repaint the exterior surface with one of our high quality top coats that has great adhesion and water resistance.
Primer: Plaster Primer
Top Coat: Duraklad
Iron Adhesion
Paint that has lost its adhesion to a galvanized metal substrate.
There are several reasons that can cause poor adhesion:
a. Improper surface preparation, such as inadequate rust removal.
b. Failure to apply a primer before application of an oil-based or vinyl latex paint.
c. Failure to sand baked-on enamel finishes or glossy surfaces before painting.
Any rust on the metal should be removed with a wire brush; then, an acrylic latex corrosion-inhibitive primer should be applied (one coat is usually sufficient). Previously painted galvanized metal that is completely rust-free can be painted without applying a primer. A latex metal primer should be applied to unpainted galvanized metal, followed by a top quality exterior acrylic latex paint. Make sure that all dust is removed and apply the appropriate quality Latex Primer. Repaint the surface with one of our high quality exterior latex paints.
Primer: Metal Ech Primer/ Rustbond Primer
Top Coat: Duraklad, Weathertex, Flexicrete
Flaking
Flaking is in the early stages of the problem, hairline cracks appear on the surface of the paint and later develops to flaking of paint chips. Flaking is the splitting of dry paint through at least one coat and this leads to complete failure of the paint.
There are several reasons that will cause flaking of paint on a substrate:
a. Flaking will most likely occur when a low quality paint is used that does not have adequate
adhesion or flexibility. This will also be the case when paint is over thinned or spread too thin.
b. Painting under excessively cold and windy conditions that will make a water-based paint dry too
fast.
c. Flaking is also the result of poor or no surface preparation especially when the paint is applied to
bare wood without priming.
It is possible to correct flaking that does not go down to the substrate by removing the loose of flaking paint with a scraper or wire brush, sanding the surface lightly and priming and painting any bare spots. If the flaking goes down to the substrate all the paint needs to be removed by scraping or sanding the surface. A high quality primer must then be applied after which the surface can be repainted with one of our quality topcoats.
Primer: Plaster Primer
Top Coat: Duraklad | Weathertex | Flexicrete
Rusting
The slow reaction of an iron piece reacting with moisture.
There are several reasons that can cause Rusting:
a. This crust, called rust, is caused by the mixture of the metal with oxygen from water in the air.
b. Oxygen in the water combines with atoms of iron to form molecules of a compound called iron
oxide.
c. Non Galvanized Iron begin to rust after Sanding or excessive weathering.
When painting new exterior construction where non-galvanized iron is being used, it is advisable to first countersink the iron with a rust converter, then coat it with a top quality, water-based all-acrylic or siliconized acrylic coat. The iron should be spot primed, then painted with a quality latex coating.
When repainting exteriors where iron rusting has occurred, wash off rust stains, sand it, then follow the same surface preparation procedures as for new construction. Repaint the surface with one of Ultraline’s high quality exterior latex paint.
Primers: QD Zinch Phos/
Rustbond Primer
Top Coat: High Gloss Enamel/
Arctic Gloss Enamel/ Arctic Eggshell Enamel
Blistering
Bubbles resulting from localized loss of adhesion, and lifting of the paint film from the underlying surface.
There are several reasons that can cause Blistering:
a. Painting a warm surface in direct sunlight.
b. Application of oil-based or alkyd paint over a damp or wet surface.
c. Moisture escaping through the exterior walls (less likely with latex paint than with oil-based or
alkyd paint).
d. Exposure of latex paint film to dew, high humidity or rain shortly after paint has dried, especially if
there was inadequate surface preparation.
If blisters go down to the substrate: try to remove the source of moisture. Repair loose caulking; consider installing vents or exhaust fans. Remove blisters. If blisters do not go all the way down to the substrate: remove them by scraping, then sanding, prime bare wood and repaint with a quality Duraklad exterior paint. Repaint the surface with one of our high quality exterior latex paint.
Primer: Anti Fungal Wash
Top Coat: Duraklad
Fungal Growth
Fungal Contamination is an area or areas on paint surfaces or sealants that are covered with small black, grey or brown spots. These areas can be sparsely covered or in more severe cases it can cover entire wall sections.
Fungal Contamination most often occur on areas that tend to be damp, or receive little or no direct sunlight. It will also reappear on areas where previous contamination were not removed. Fungal Contamination will most likely form when bare wood surfaces are not properly primed before applying paint.
• Test for fungus by applying a few drops of household bleach to the area, if it is bleached away,
the discolourant is probably fungus.
• Remove all the fungus from the surface by scrubbing with Anti-Fungal Wash.
• Make sure to wear protective gloves and eyewear.
• Rinse thoroughly.
• To protect against fungal contamination, use one of our top quality water-based paints,
Duraklad with Anti-Fungal Qualities, and clean when necessary with bleach / detergent solution.
Primer: Anti Fungal Wash
Top Coat: Duraklad
