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if some adheasevs dry chemically, why wont it harden in the container? Answered

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steveastrouk
steveastrouk

10 years ago

Well they only harden chemically if the right chemicals are present. In a container there is a restricted amount of oxygen and water, which is typically what sets them off.

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lemonie
lemonie

10 years ago


Some adhesives are like paints and you have Re-design's answer there, but UV (e.g. sunlight) has a similar effect to oxygen in initiating free-radical polymerisation.
Others are dissolved polymers or emulsions (e.g. PVA, latex).
Super-glue activates with water (Re-design)

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Re-design
Re-design

10 years ago

needs oxygen from the air or moisture from the air to activate the process. It will harden in the container if enough air gets in.