Does Not Become Brittle and Crack
3M Ultrapro Autobody Sealant is an excellent heavy-bodied, solvent-based, seam sealer which adheres to painted metal, glass, and aluminum.
It is thick, and does not self-level making it ideal for covering welds and other rough surfaces prior to painting.
Can be used wherever heavy bodied seam sealers are needed.
High solids, low shrinkage, with a synthetic rubber base.
Ideal seam sealer where time and speed are important.
Paintable in 45 minutes.
Synthetic rubber base; toluene solvent; contains styrenes.
Tack-free: 45 min
Remains flexible over time
Does not become brittle and crack over time - fewer second time repairs
Service temperature: -20F to 180F
Not recommended for use in occupied spaces, as it can emit a residual solvent odor