The bubble gasket is the cheapest gasket in frame construction. Besides its low quality, they cannot be replaced if damaged.
Profile manufacturing companies (e.g., Europa, Alumil) prohibit their use (in sashes for glazing) except when used in shutters (blinds),
Bubble gaskets are susceptible to solar radiation and easily “dry out” – they get destroyed. A characteristic feature is the plastic “bone” at the back for insertion into the aluminum profile.
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