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Plasterboard joints and repaired cracks need reinforcement beneath the finished surface. MacBlair's scrim and tape range provides the layer that bridges board edges, supports jointing compounds and reduces the chance of a straight crack reappearing through decoration.
Self-adhesive mesh can hold itself across clean board joints before the specified compound is applied. Paper joint tape is bedded into compound and its crease can form internal angles. These products are not interchangeable in every system, particularly where fire or acoustic performance depends on tested components.
Keep the tape centred, flat and free from bubbles or folds. Each compound coat should dry as directed before the next is feathered wider. Prepare the underlying framing with straight timber studwork, add the specified stud wall insulation before closing the partition, and select finishing products through painting and decorating materials.
It reinforces plasterboard joints and some plaster repairs beneath jointing compound or skim. The tape bridges the joint so small movements are less likely to form a visible crack.
Each belongs to particular systems. Mesh is self-adhesive and easy to position, while paper tape forms strong flat joints and internal corners when bedded correctly. Follow the board system.
Apply the plaster or jointing compound specified for the tape and board. Cover the mesh fully and feather the finish beyond the joint.
The compound may be too thin, insufficiently feathered or sanded back too far. Add the required finishing coats and blend them over a wider area.
Tape can reinforce a stable repair, but repeated cracking may show movement, moisture or a failed background. Find and correct the cause before refinishing.