Hand-applied plastic glazing compound.
Bedding and external fronting single glass into factory-coated steel frames where the compound is to be left uncoated, and also into primed softwood and hardwood frames where the frames and compound are subsequently coated with micro-porous paint or stain.
Application temperature range: +5°C to +30°C Shelf life: 3 months when stored in original containers in cool, dry conditions. Some separation of oil may occur which should be mixed back into the putty before use. Skinning time: Skin forms after approximately 2 – 4 days outdoors, dependent on ambient temperature and humidity. Working time: Approximately 4 hours
Remove all dust, grease and loose material from the rebate. Any moisture on the timber should be wiped off using a clean paper towel or other absorbent material to give a dry surface. Hodgson Timber Sealer should be used to seal the rebate platform and upstand when glazing into timber frames. Check the condition of the primer on the frame, especially the rebate. Any section, which has been partially missed or is considerably weathered should be reprimed before glazing. One coat of primer to BS5358: 1986 applied to new softwood will allow sufficient oil to be absorbed into the frame. Apply putty to rebate and insert setting blocks.
Place pane on setting blocks, centralise, press into putty to give a back bedding of 1 – 2mm throughout and secure pane mechanically i.e. with metal sprigs or clips. Location blocks should be used in side hung opening windows to hold the glass in place. Apply further fronting putty and knife at an angle finishing about 2 mm below the sightline. Brush putty with soft brush to seal to glass Knife off back bedding, sloping away from glass.
Frame Type Minimum height x Minimum width Maximum height x Maximum width Timber 8mm x 10mm 12mm x 20mm Steel 10mm x 15mm 15mm x 20mm
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