Blotchy Exterior Paint

The paint in aerosol cans is drastically thinned so it can be propelled out of the can.

Blotchy exterior paint. Rinse well and towel dry. Previous finish was red latex and it was applied with no problem. A fine powdery white substance that forms on painted exteriors chalking is most often seen in arid sunny climates.

Leave the paint for a few hours and then examine it again. Not using enough coats is another possibility why the color is. For exterior surfaces choices widen to include both latex and oil-based paints for walls and trims along with special formulations for metal and masonry surfaces.

It has raised panels with routed trim applied so brushing seems necessary. Over time walls pick up dust and grime that can interfere with paint adhesion so even a relatively clean wall should be washed before its painted. Painting in cool humid conditions or just before they occur.

Establish why the paint is splotchy. 17 Easy Fixes for a Botched Paint Job. Coating over a porous surface.

If your paint job looks blotchy or is uneven this might mean that you didnt apply enough layers of paint which led to some parts of the old paint to still show through the new coats of paint. It tends to be most visible on pale-colored flat paints and is likely to occur on improperly sealed porous materials and poor-quality factory. Allow the surface to dry and then rub down using wet and dry abrasive paper and a solution of warm water and detergent.

This is caused by painting over contaminated surfaces such as wax oil or polish. Temperature fluctuations during drying. Theres a simple test to tell you which is which.