I recently began doing some much needed winterizing and noticed I had some wood that had rotted. This seems to be a common item I see people mention on their motor homes and seems to be somewhat common on the class C motor homes where water penetrates via a cab over window and gets into the wood frame structure.
Since I had seen this issue previously and did some repairs, I wanted to look back at the repairs I did about 5 or 6 years ago and see how those areas held up. As it turned out, the areas I had previously repaired, still looked great and the wood structure was solid and firm.
The process I used before, I will use again using the same product. If its held up in previous repairs, I feel confident it will hold up on current repairs.
The product I used is called PC- Petrifier, Wood Hardener.
I can not find it at any of the local big box stores. You can find it at hardwarestorecloseouts.com
The direct link to the page is at:
It comes it two sizes a smaller bottle and a large bottle for $ 12.99. You can get a 20% discount to use online. I have used it before but this time I was using it on my Coleman pop up camper. The coupon code is FB20 for a 20% discount.
Its very simple to use and once the product completely dries, the wood is solid and can be sanded, drilled and painted.
Its important that you get the wood completely dry before you apply the product. Simply scrape off any paint and allow the wood to dry. I used a heat gun to speed up the drying process. Then simply brush PC Petrifier wood hardener on liberally to the surface of the wood. Allow it to dry overnight and then you can prime it a paint it.
In my case I had severe damage and I chose to fill in the damaged area with an epoxy based filler. PC also makes a Wood epoxy filler. I have used glass impregnated bondo too. With the wood hardened, you have a good surface which the epoxy filler can bond to.
The epoxy filler has a set up time of 5 to 10 minutes to you have to work fast. The good thing is this makes it ready to sand and paint in minutes.
Once I sanded the epoxy filler with a 60 grit sandpaper, I then sanded it with 100 and then 220. I then primed the surface and calked any seams. Thats it. Now I have a strong wood surface that will last years.
I hope this helps someone and if you have any questions, feel free to ask
1977 Airstream Argosy 28 motor coach