Multicrete Products Burnt Mastic Sand (10 Litres/Approx' 6.25Kgs) & Double Boiled Linseed Oil (1 Litre) Kit
•Traditional Burnt Mastic Sand has been in use for over 200 years.
•Used to form joints between timber window and door frames.
•Slowly hardens but remains flexible to apply.
•Mixing - Add Linseed Oil a little at a time, mixing until the Mastic is worked into a think putty.
•Coverage = Approx' 1Kg at 12.5 metres to a 9mm joint