Lösit (MEK)
Also: MEK, methyl ethyl ketone, thinner
Lösit is an MEK-based solvent. It is used to clean bonding surfaces and to thin Helaplast.
The Packrafting Store writes that Lösit helps make the glue easier to work and go further. It contains strong solvents: use sparingly, with good ventilation and gloves. For normal cleaning before a repair, spirit or isopropyl alcohol is enough.
Matching gear
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Helaplast, hardener and Lösit* (advertising, external link, opens in a new window)
Sources and further reading
Research as of 13 Nov 2026. We have marked manufacturer information as such.