sia’s 799s series siasponge Combi-Block is made from soft polyurethane foam with aluminum oxide and a flexible elastic binder.

This versatile block is 69mm x 98mm (2-3/4″ x 3-5/8″) and great for all materials and the soft foam block adapts perfectly to rebates, edges and profiles and ensures uniform pressure distribution without losing its edge stability.

Advantages of sia 7991 siasponge

• Colour coded for easy identification
• Low clogging
• Can be used wet or dry
• Coated on all four sides, ideal for use inside rebates and on flat surfaces
• More information on sia 7991 siasponge soft blocks

Applicationsof sia 7991 siasponge

• Keying of wood, metal and plastic prior to application of paint
• Fine sanding primer filler
• Intermediate sanding of varnishes on surfaces, rebates and gentle curves
• Keying rebates and slight curves

Sold individually.