Schlegel Aquamac 33 Qlon QL3012 Timber Weatherseal - 10m Pack

Schlegel Aquamac 33 (AQ33 / QL3012) push-fit foam seal for timber windows and doors: 10m length for a 2.7-3.0mm groove and a 4.0-6.5mm gap.

Schlegel Aquamac 33 is a push-fit foam weather seal for timber window and door frames. It pushes into the groove already cut in the frame and needs no adhesive. The same seal is also sold under the Q-Lon code QL3012.

The seal is a polyurethane foam core wrapped in a polyethylene film, supplied as one continuous 10m length in brown or white. Like most wooden window seals, it has to match the groove in the frame, so check the sizes below before ordering.

Dimensions - Check It Fits:

Cut a short piece of the old seal and compare the cut end with the profile shape and sizes. Then measure the width and depth of the groove, and the gap the seal has to fill when the window or door is closed.

This will not fit if: the groove is narrower than 2.7mm, wider than 3.0mm or shallower than 6.0mm, the gap to seal is outside 4.0mm to 6.5mm, or the frame has no groove.

• Profile type: Push-fit foam seal for a grooved frame
• Seal body width: 8.0mm
• Seal body height: 10.5mm (the part that sits outside the groove)
• Overall height: 15.5mm, including the fixing foot
• Fixing foot width: 3.4mm (the barbed foot is wider than the groove so that it grips)
• Rebate: 11mm
• Length supplied: 10m, in one continuous length

What It Fits and Replaces:

• Timber window and door frames with a 2.7mm to 3.0mm groove
• Replaces worn seals marked or sold as AQ33 or QL3012

Key Benefits:

• Keeps Its Shape – The foam returns to its original shape after long periods compressed, and the seal does not stretch or shrink in the groove.
• Cuts Draughts, Heat Loss and Noise – The foam fills the gap between the sash and the frame, which helps reduce heat loss and outside noise.
• Easy Closing, Hot or Cold – It seals with a low compression force and works in very cold and very warm weather, so the window or door shuts without extra effort.
• Paint, Stain and Weather Resistant – Standard paints and stains do not affect it, and the water-repellent foam is not affected by rot, mould, mildew, UV light or ozone.
• Push-Fit Window Gasket – It pushes into the existing groove with no adhesive, so replacing an old seal is quick.

Product Specifications:

• Brand: Schlegel
• Model: Aquamac AQ33
• Also known as: QL3012 (Qlon)
• Type: Push-fit foam weather seal
• Material: Polyurethane foam core with a polyethylene film cover
• Colour: Brown, close to RAL 8019 (Schlegel call this colour Bronze), or White, close to RAL 9003
• Fixing: Pushes into the groove, no adhesive needed
• Suitable for: Timber window and door frames
• Window operation: Hinged windows
• Standards: Conforms to BS 644 / BBA
• Testing: Independently certified for over 10,000 operation cycles
• Guarantee: 10-year manufacturer's guarantee

Pro Tips:

Pro Tip: Old window seals often leave dirt and paint in the groove, so clean it out before fitting. Push the new seal in without stretching it and cut it slightly over length, because a stretched seal can pull back and leave gaps at the corners.

Tools you'll need: A sharp knife or scissors to cut the seal to length.

What's in the Pack:

• 1 × 10m continuous length of Aquamac AQ33 seal in your chosen colour

Frequently Asked Questions:

What size groove does the Schlegel Aquamac 33 need?

It needs a groove 2.7mm to 3.0mm wide and at least 6.0mm deep. It seals a gap of 4.0mm to 6.5mm between the sash or door and the frame.

What is the difference between AQ33 and Aquamac 63?

Both fit the same 2.7mm to 3.0mm groove, but they seal different gaps. AQ33 seals a 4.0mm to 6.5mm gap with an 11mm rebate, while AQ63 seals a 3.4mm to 5.4mm gap with an 8mm rebate.

How do I measure for replacement timber window seals and gaskets?

Cut a short piece of the old seal and compare the cut end with the new profile. Then measure the groove width, the groove depth and the gap to be sealed, and check them against the key sizes above.

Is this a push fit wooden door frame seal, or does it need glue?

It is push-fit and needs no adhesive. The seal pushes into the groove in the timber frame, so it is not suitable for a frame with no groove.

Is AQ33 the same as Q-Lon QL3012?

Yes. AQ33 is the Aquamac name and QL3012 is the Q-Lon code for the same Schlegel seal. You may also see it written as Q Lon.