Excessively Powered Paint: Chalking

Excessively Powered Paint: Chalking
Definition: Excessive and heavy powdering. Paints chalk naturally over long exposure to sun and weather

- usually due to natural weathering
- paints using excessive clay in place of titanium dioxide
- interior paints being used for exterior surfaces
- over thinning or spreading the paint too thin
- using the wrong product

- remove all of the chalk with a thick bristle brush (wire on masonry)
- Then rinse the surface thoroughly with a garden hose with high water pressure
- For the best results use a power washer
- If some chalk still remains, a chalk binder coat is required
- A penetrating primer is important to seal off any remaining chalk
- use a high quality exterior paint in the color and sheen of your choice