Windshield Repair Forum

Hey all, just was wondering how most of you guys feel about repairing long cracks with the pumping suction cups, as opposed to the cups that just pushes down fast to the WS? Also wondering if anyone has ever had any issues with the non-pump suction cups letting lose during the repair, or a pumping suction cup ever giving you any problem during a crack rapair? Just trying to weight out the pros and cons of both. Aslo does Delta sell the lubricant used to slide the cup during a long crack repair, and what is this lubricant actually called? Thanks Guys.

Brennan29 wrote: Aslo does Delta sell the lubricant used to slide the cup during a long crack repair, and what is this lubricant actually called? Thanks Guys.

Delta Kits does not sell the lubricant but it you read the suction cup lubricant post you can get some great ideas on what lubricant to use during a long crack repair.

With the ordinary suction cups, like for example as used by UB and GW (but not just by them!), you have to push the suction cups onto the surface. The pushing action may cause the crack to expand even further, not good. I therefore really prefer the pump-activated suction cup (Woods') like used at DK and some others.
There is no need to push, therefore there is no need to be worried that the crack is going to expand further.

You can't use a lubricant on a pump style suction cup. Just use water or the vacuum holes in the pump will get clogged up.
Regular suction cups can be lubed with vaseline or hand lotion.

Mr Bill I beg to differ slightly on this with you. I do sometimes use a small amount of lubricant on the suction cups, seeing as it is only the outside ring that is sealing I see no problem with applying some to this area.

As for lubricant KY Jelly. the wife and I once went to wholesalers and bouht 20 tubes that were on offer along with 10 rolls of wiping paper, all for WSR use I add. The sales assistant for some reason was a blushing a bit.

Looks like I opened a real can of worms here..lol.. Frank EU I agree with you with you that pushing on the WS with a non-pump cup is very risky! Mr Bill rises a good point about possablly clogging up the vacuum holes in the cup(and even possablly damagimg the pump). Mr Bill is water a good luibrcant though? I can imagine it is.. Screen man, do you use lubricant on the pump style cups, for doing crack repairs? If so, how do it work? Sounds like there might just be a market for someone to make a holding device with a changable cup option. What do you guy thing?

Have been using Curel hand lotion for a while and it works better than the cheap stuff. Stays slippery for a long time and washes clean with soapy water.

I use a push on suction cup and slide it down the crack. Most times use two injectors, one with thin and one with thick resin for the more open part of the crack.

Using lubricant on pump style vacuum cups is not necessary and may void the warranty. No water is necessary either. Just make sure the surface of the cup and the surface of the glass are both clean and dry and you will have no problems. Delta Kits does not recommend sliding the injector to fill long cracks, therefore this is a non issue for anyone who uses our methods. On our older style bridge suction cups, lamp cups, etc., water is all you ever need to create a secure bond. Everyone has their own ideas about lubricating suction cups, but that is what we recommend.

I used bridges with push on suction cups for many years with great results, but find the pump style and flip lever vacuum cups to be safer, more secure, and more stable. Again, this is my personal preference based on a great deal of testing, but we still sell regular suction cup mounted bridges for those who prefer them.

Brent I sent you an email on this matter. If Delta kits does not recomend sliding the injector then how does the crack fill. I used to drill the end of the crack, tap it with the probe to get a bullseye, then start injecting it with an injector. As soon as the injector ran out of gas and stoped fillint the crack, I would just take a bottle of crack resin and begin to fill the rest of the crack by running the tip of the bottle along the crack to the end. This methed doesnt allways work though, so I am looking for a diferant and more 100% way of getting it everytime. Thanks

Have you tried using a crack expander for those times when capillary action needs a little assistance?