Bonding hood supports to hood skin

[woytovich]

I'm seeing a few products discussed, all so far are 2 parts that mix during application via a special applicator gun. While this is apparently the most common solution I'm wondering about single part products that can be applied with a standard caulking gun that will perform similarly. Is this just wishful thinking? I'm not wanting to be penny-wise and pound foolish but...

 

[aztoyman]

How about 3M Marine adhesive sealant 5200?

 

[SteveH]

PL Urethane construction adhesive from Home Depot. I have used this on FJ55s, 60s, 62s, hoods (all have popped loose from the brace) etc. to great effect. Sticks forever and priced right. I would not use a 'regular' construction adhesive (Liquid Nails, for a lack of a more creative way to express this). Urethane adhesives are really good stuff. Clean any surfaces (that you plan to glue) under the hood that might have oil and gunk sprayed on them over the years.

LOCTITE PL Premium 10 fl. oz. Polyurethane Construction Adhesive 1390595 - The Home Depot

The Loctite PL Premium 10 oz. Polyurethane Construction Adhesive is low in VOC yet up to 3 times stronger than traditional adhesives. It withstands all kinds of weather and bonds to practically any material.

www.homedepot.com

After applying, I closed the hood on a 2x4 (on end) that I placed between the brace and the valve cover, and the weight of the hood helped press the brace tight to the hood while it cured for 24 hours. You should find some way to press the loose brace against the hood sheet metal.

 

[woytovich]

Is it resistant to gas and oil? How about heat? Does it remain flexible?

 

[SteveH]

@woytovich - Is it resistant to gas and oil? How about heat? Does it remain flexible?

Yes - it remains slightly flexible - it's not rock hard, but it's very tough and stiff when dry.

From the data sheet - Loctite® PL® Premium can be removed mechanically once cured. Solvents have little to no effect on cured adhesive.

and: (Cured) Service Temperature: -40°F (-40°C) to 160°F (71°C)