Thetford Premium RV Slide Out Rubber Seal Conditioner # 32778.
You want to use only Non Petroleum Base Formulas seal conditioner. Petroleum base seal conditioners will cause the rubber seals to swell and can cause the slide out to stick and when it does travel you will hear squealing as the slide out travels.
The petroleum base lub will allow dust and dirt and foreign material to adhere to the rubber seals.
I use this product twice a year, at the beginning of the season and at the end.
- Prevents fading, cracking and deterioration
- Long-lasting UV protection
- Non-petroleum formula thatís tested safe (petroleum-based formulas can cause swelling, cracking or degradation of rubber seals)
- Protective coating repels water
- Cleans, conditions and shines
- No wiping required