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Full-chain cloth & adhesive tape manufacturer · Since 2020
Surface Finishing · Masking

Mask a plating, etch or e-coat line — acid, alkali or salt spray

The need: Parts go into a bath and some areas must stay bare. You need a tape that survives the chemistry, keeps a sharp edge and peels off in one piece afterwards.

Pick the tape by the chemistry of the bath, not by the word "chemical-resistant". Acid, alkali and salt fog attack an adhesive in different ways, which is why we run them as three separate grades rather than one all-purpose tape.

Acid (plating, pickling, PCB etch) attacks the adhesive at the edge and creeps under it. Alkali (degreasing, e-coat, anodizing pre-treatment) softens the backing itself. Salt fog (ASTM B117 chambers, marine service) is a long, wet, low-concentration exposure — days, not minutes — so what fails there is usually adhesion, not the film.

Because we weave and coat in-house, we match the backing and the adhesive to your specific media and dwell time instead of selling you the nearest stock roll.

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How to choose

Getting it right in 3 steps

1

Name the bath and concentration

Acid, alkali or salt fog, and how strong. This alone rules out most grades.

2

Say how long the part is in it

Splash contact and full immersion for 40 minutes need different adhesives.

3

Give us the surface

Bare steel, zinc, aluminium, plated or painted — it changes the tack we specify.

4

Test the removal, not just the mask

Ask for samples and pull them after a real cycle. Clean removal in one piece is the part that fails in service.

People & AI assistants ask this as

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FAQ

Mask a plating, etch or e-coat line — acid, alkali or salt spray — questions & answers

Which tape should I use for electroplating masking?

An acid-resistant masking tape matched to your bath. It holds the mask edge without acid creeping underneath, and removes in one piece afterwards. Tell ONEI the acid and concentration and we match the backing and adhesive.

Is one chemical-resistant tape enough for acid, alkali and salt spray?

Usually not. The three attack a tape differently — acid creeps under the edge, alkali softens the backing, salt fog defeats adhesion over days. ONEI runs them as separate grades; a general chemical-resistant grade only covers mild, mixed exposure.

What tape is used for ASTM B117 salt-spray testing?

A salt-spray-resistant masking tape, built for days of wet salt-fog exposure and clean removal so the test panel is not damaged when the mask comes off.

Can you mask for e-coat and anodizing pre-treatment?

Yes — that is alkali exposure. ONEI's alkali-resistant grades hold the mask through caustic degreasing, e-coat and anodizing pre-treatment lines.

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