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Easyfix Magnetglaze Sash Heavy Duty - 4mm Panel Insulation


Magnetglaze Sash Heavy Duty provides insulation and access for large or draughty sash windows, or any other windows where jointed panels are required. It is an add-on to either Magnetglaze with or without Finishing Trim, or to Magnetglaze Pro which need to be purchased alongside the sash kit. These heavy duty kits use a specially designed rigid jointing strip which maintains the thermal seal for 4mm panels, allowing them to be removed and replaces at will for instant ventilation or insulation. Each heavy duty kit contains enough components to joint 4 windows of up to 1500mm wide.

For smaller windows that are suitable for 2mm thick glazing you can use Magnetglaze Sash 2mm kits.

magnetglaze sash installation pdfInstallation of the kit requires no special tools and is straightforward. Once the Magnetglaze or Magnetglaze Pro edgings have been attached to both window surround and glazing panels, simply apply Bristle Seal to the open edges of the panels where they will join in the middle of the window, then cut and fit the H Section. Turnbutton clips can be applied to the window to anchor the non-moving pane and to reinforce the magnets against the natural movement of the panes caused by window draughts. See the PDF instructions and video for more details.

Each Heavy Duty Sash kit comprises 4 lengths of the H Strip, 12m of Bristle Seal, screws, clips and 2 Surface Preparation Wipes.

Polycarbonate Glazing Sheet

£ per metre 2
height: mm
width: mm
Min height & width 100mm. Max size 2440mm x 1220mm N.B. Please check your dimensions carefully before ordering cut sheet as once this has been ordered and cut, it cannot be refunded.


Price £....
Magnetglaze Sash HD add-on system
4mm Kit White (Magnetglaze or MG Pro also required) £38.80
4mm Kit Brown (Magnetglaze or MG Pro also required) £38.80
Anti Static Spray
100ml Bottle £4.00