For rough surfaces stucco and embossed masonite siding only scraping and or wire brushing is possible.
How to remove paint from masonite siding.
1 sand the siding lightly with 80 grit sandpaper or a sanding block to remove loose bits.
Learn about hardiplank which is more expensive than vinyl but sturdy pre painted and available in a number of different styles.
For small areas remove bubbles by scraping then sand the edges of the repair to create a smooth surface.
Damage caused by nails can weaken the structure of the siding.
Masonite is nothing but thickened wood fiber.
This will also be a cause for its decay.
You can seal and paint the siding if it s in decent shape but you should replace rotted masonite siding.
Coat the primed siding with acrylic latex paint using the roller.
As such it is bound to attract insects.
Cracked exterior paint will expose the masonite and subject it to the harsh weather conditions causing it to wither away.
Add a second coat if you can see the primer bleeding through.
Step 5 touch up paint or stain.
Fixing exterior blistered paint.
Because hardboard siding tends to absorb water fairly easily it s important to choose the right paint and techniques for the job to ensure your results will last.
Use a paint brush to apply light coats of paint or stain to the affected area.
Like all wood siding products masonite requires regular painting to maintain its appearance.
Apply a drop or two of exterior caulk on the back of the replacement.
If you have used sandpaper or a abrasive scrub brush when cleaning the hardboard siding on your home you may need to touch up paint or stain in areas where heavy stains were present.
Use the paintbrush to apply paint to areas of siding inaccessible to the roller.
After you have the dimensions for the replacement use a utility knife to cut a fresh piece of masonite siding as per your specifications.
This applies to smooth surfaces with out texture like smooth wood siding.
Masonite is a brand of hardboard siding made from compressed wood fibers.
How to remove or hide paint drips from brick siding.
Then you may remove the damaged area of the siding and note its dimensions using a measuring tape.
The full story is detailed on the home dec forum if you need more detail.