MotorHome Tech Tips
RV Sealant Inspection & Repair
The adhesives and sealants used in the construction of each motorhome were developed to remain waterproof under sustained effects of weather and vibration. However, even the finest materials will eventually dry out and lose their effectiveness under the constant heat of the sun and attack by other elements. This section outlines the procedures you must follow to maintain the weatherproof integrity of your motorhome.
Your dealer can perform the resealing inspection and work for you. Your dealer also has current information on the individual sealants used in your motorhome, and can recommend the appropriate sealants for you if you prefer to do this work yourself. Always use the recommended sealants as there are specific sealants for various different applications.
Failure to seal could cause serious damage and will affect your warranty.
It is the customer's responsibility to inspect the sealants around all windows and doors at least every THREE MONTHS. Also inspect roof vents, other roof components, moldings at front and real caps, and perimeter moulding. If any of the following defects are evident during inspection, the affected areas must be re-sealed:
- Excessive amount of sealant protruding from joints
- Sealant cracked or peeling
- Voids in sealant
NOTE: Do not seal the bottom flanges of windows and doors. Special gaps in the sealant have been intentionally left in the bottom flange to provide exterior drainage in the event of leakage.
Sealants used in Specific Applications on the motorhome:
Surebond SB-140 Architectural ELASTOMERIC RUBBER Sealant (White): To seal around smoked roof skylight
Sikaflex 255 FC Technique Adhesive-Sealant Systems (Black): To seal around windshield
Geocel 2300 MHRV Vehicle Body Sealant (White): Roof seams or body where white sealant can be used
Alpha Systems Self Leveling Sealant 1015 (White): To seal roof plumbing vent caps, TV antenna, vent fans
Geocel 2300 Construction Tripolymer Sealant (Clear): Sidewalls, Body, Windows where clear sealant is to be used
Legal Disclaimer & Caution: Before using any advice, and/or performing any maintenance procedures recommended on this website you should consult with your RV dealer, and/or a professional Motorhome or RV mechanic. The recommendations and advice given on this website are intended as general guidelines ONLY, and may not pertain to your particular make and/or model of RV or Motorhome. Use these suggestions, repair tips, and/or maintenance advice AT YOUR OWN RISK. Under no circumstances will this website, or any of its officers or employees be liable for any consequential, incidental, special or exemplary damages even if appraised of the likelihood of such damages occurring. The owners of this website do not warrant the information against errors, omissions or deficiencies of any kind.
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