Talk:Aerolite (adhesive)

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Strength of adhesive bonded joints in wood

The introduction to this article says: "a properly made Aerolite joint is said to be three times stronger than spruce wood." Who says this? i.e. it is not supported by a citation. Furthermore it is not true, and is a common myth. A good type of structural finger joint using an adhesive such as Aerolite will have an efficiency of around 85% at best. See for example BS 5268 Part 2.

I shall alter the article in a few weeks time if there is not response to this "Talk."

Dendrotek 11:14, 17 November 2012 (UTC)

There's a difference though between "bond" and "joint". Simple long-grain butts with modern adhesives should exceed the strength of typical softwoods (i.e. the timber breaks first). However these are not a useful example of an overall joint. There's also the issue that "efficiency" is based on a usable strength for the purposes of design, with the usual assumptions made about "safety factors" _(sic). That's also a different thing to the actual strength of the joint when tested. Andy Dingley (talk) 13:12, 17 November 2012 (UTC)[reply]

Anyone who has used an Aero Grade woodworking adhesive like Aerolite in a high load application will be able to state that the wood always fails long before the glued joint. That's pretty much the whole point in using it. But the join does need to be properly designed for the intended loads.— Preceding unsigned comment added by 86.8.126.91 (talk) 11:10, 6 July 2025 (UTC)[reply]