Question 1

Is this double-sided and sticky - so it would stick and seal polycarbonate sheeting to its wood frame?

Accepted Answer

Not sure about sticking to polycarbonate but as a sealing strip it worked brilliantly to my motorhome GRP body!  The parts ultimately were screwed together so if this is the same assembly method you should be fine

Question 2

Would this be suitable to fix a cycle rack leaking braket on the back of the moho - was thinking loosening, cleaning and then resealing with this

Accepted Answer

I used it for reselling the Truma water heater flange to the outside of the caravan.    I found the mastic tape to be too thick and difficult to work with.     I think you would be better using CT1 Sealant or similar which I used to bond and seal the mounting feet of the Solar Panel, to the Caravans roof.    Hope this helps.

Question 3

Is this tape double sided

Accepted Answer

Yes it is, once the protective non-stick separator tape is removed.  It is simply there to stop the mastic sticking to itself and to aid installation.

Question 4

Will it stick to silicone sealent around a van roof vent?

Accepted Answer

Yes, it will stick to just about anything you apply it to.  However, I have resealed a roof light/vent before and what you are planning is not your best course of action.  You should remove the roof vent completely, and then use a silicone removal solution to remove the old silicone from both mating surfaces. Note, silicone should never have been used to seal it in the first place. You can buy a small bottle of silicone remover from Screwfix for around £5.  Then buy the wide mastic sealing strip, (Not the narrow).  Then refit the roof vent.  When you have screwed it down, any excess mastic that squeezes out can easily be removed by wiping it off using white spirits.

ASIN	B00J0X1BUQ
Best Sellers Rank	209,499 in DIY & Tools ( See Top 100 in DIY & Tools ) 2,125 in Sealers
Brand	W4
Colour	White
Customer Reviews	4.5 4.5 out of 5 stars (366)
Global Trade Identification Number	05019328001168
Item Thickness	19 Millimetres
Item Type Name	W4 W4 Narrow Mastic Sealing Strip - 5m x 19mm - White,
Manufacturer	W4
Material	Butyl
Model Number	00116
Number of Packs	1
Part Number	00116
Recommended Uses For Product	Sealing overlap joints, awning rails, roof-lights, vents, window surrounds, and external trims on caravans and motorhomes
Unit Count	1.0 count

W4 Narrow Mastic Sealing Strip - White, 5m x 19mm

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