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Epoxy product can restore finish on eroded bathtubs

Our built-in bathtub is seriously eroded. Will ''Klenk's Epoxy Enamel Tub & Tile'' finish, made by Zynotile Products in Compton, Calif., be effective? Glenn Kjellberg Jackson, Minn.

A ''Klenk's Tub & Tile'' should work well on porcelainized surfaces when used according to package directions. The manufacturer says the finish will last three to five years, provided it is not scoured with abrasive cleaners. It recommends an aerosol bathroom cleanser.

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The product is a two-part epoxy mixed in equal parts before use. Allow the mixture to set for 60 to 90 minutes before application.

Apply in two coats, the second no sooner than 12 hours and no later than 36 hours after the first. Make sure to apply the mixture when the temperature in the room and on the painting surface is 65 degrees F. or higher.

Proper surface preparation is crucial to success.

Minimum preparation consists of scouring, sanding with wet and dry 320 or 380 grit, and cleaning with a tack rag. Maximum preparation includes etching with hydrochloric acid, followed by a solvent rinse.

Although not for a do-it-yourself job, another company with franchise applicators throughout the country is Porcelite Enterprises Inc., 14650 South Lawn Lane, Rockville, Md. 20854. The phone number is: (301) 340-6933.

For local applicators, check the yellow pages under porcelain repairs.

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