Introduction/application Wondertex Ultralight drywall joint filler is a Class B gypsum – based 90 minute - 120 minute setting compound. Used for the bedding and filling of tapers, external metal angles and corner tapes. For hand application only.

Wondertex Ultralight joint filler is applied to the trough of the tapered edge joints. Centre jointing tape over the joint, removing any air bubbles to ensure good adhesion. Immediately after the tape has been fixed apply a new layer of joint filler over the tape flush with the surface of the plasterboard before the joint filler begins to stiffen. After 90 - 120 minutes a finishing application should be applied to obtain complete elimination of the tape edges, and feathered out with a damp sponge. Finish with a coat of joint cement 250-300mm wide, when dry sand down with 120 grade sand paper.

Quality/standards

Wondertex Ultralight drywall joint filler is manufactured to BS6214 1982. For use on all gypsum boards conforming to BS1230 Part 1 1985.

Features/advantages

• Wondertex Drywall joint filler can be used as an alternative method of filling, taping and caulking when texturing, saving considerable time and effort.
• Your work will be finished in half the time.
• Supplied in powder form in 20kg paper sacks.

Additional information

Mixing - Always use clean drinking water. Depending on the amount of joint filler required, a ratio of 5kg of joint filler added to 3 litres of water (stirring continuously until free from lumps) would provide a thick consistency. Allow soaking for 3 minutes. Mix again prior to use.

Gaps greater than 3mm between boards are filled with joint filler; damaged boards must be repaired before you start. Superficial damage can be removed by rubbing down with fine sandpaper. Filling with joint filler can repair deeper indentations and small areas of damaged plasterboard. Extensive damage to plasterboard core must be removed and repaired by inserting a patch of new board.