we have a typical 6 seater outdoor hot tub that you purchase at a pool/spa store that has a hairline crack on the outside under the tub. I believe its acrylic or fiberglass and my husband wants to repair it with a resin kit thats used to repair surfboards. Any suggestions?

 

Hi:seastones2

Your husband has the right idea but this solution to fix the crack may not work.

Your question poses other questions?

Is the crack leaking water?
<If so, filling the crack may stop the water leakage temporarily but not fix the real problem that caused the crack.>

What caused the crack?
<My guess would be a lack of proper support under that area of the spa.>

How large is this crack?
<Filling the visible crack will not correct the invisible hairline crack sure to be there extending further along in a straight line in either or both directions.>

However, two suggestions come to mind.
#1
If the crack is already leaking, try the resin fix. You have nothing to lose.

#2
Visit the retailer and ask for professional advice. There you may find alternate solutions and products designed to correct this type of problem.

Good Luck,
TomBartco
Personal Quote:
"Without having experience and knowledge, hopefully, my common sense and wisdom will prevail."