Windscreen resealing

wharfie · tinkerer Joined: 04 Oct 2001 Posts: 195

Does anyone know how to re seal a windscreen. I have the new seals and locking strips and sealant, i am 40% sure how to re install them but detailed instructions would b nice, could b a good workshop article too

Kizza · tinkerer Joined: 06 Oct 2001 Posts: 440

make sure your area around the windscreen is clean, no grease or oil
u get some sikaflex(silicone) run a small bead around the inside of the sealthen put the seal on the windscreen. next u get some string approx 4 meters long, wrap it arond the seal following the gap, making sure it crosses over once and meets together the second time(preferable finnishing at the bottem in the middle, then place a small bead of silicone in the out side gap of the seal, then place the window on the car and slide the bottem of the seal on the car. next step is prefferable with 2 ppl
slowly pull the string out (thus pulling the seal over the car) while the other person pushes the window firmly into place,
let any silicone that has oozed out dry then cut it off with a stanley knife, also add more silicone as needed
hope that helps
sorry its so hard to understand

Pete · backyard mechanic Joined: 05 Oct 2001 Posts: 502

just something else... some silicones make rust grow quicker, so be careful what u use.

Woz · tinkerer Joined: 05 Oct 2001 Posts: 126

i would suggest against using a sealant that sets.

quote: "let any silicone that has oozed out dry then cut it off with a stanley knife"

if its a setting type of sealant like the above, it will only end up leaking.

i used this stuff from bunnings called "blockade" which is a grey construction adhesive, it doesnt set witch allows the window to move around during normal driving conditions, without letting any water in.

i did this a year ago and havent had any problems since!

Racegem · backyard mechanic Joined: 30 Jan 2002 Posts: 987

K&H brand of sealers do a proper "windscreen sealer" that is non hardening. Pick it up from autObarn or your local speed shop.
For those still confused, early windscreens were held in with rubber surrounds allowing the windscreen to move when the body flexed. If you use a sealant that hardens, when the body flexes, the sealant cracks and leaks.
These days, windscreens form a structural part of the roofline therefore are "glued" in with a hard setting sealer.

Yonnee.