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Hollow glass, plastic tips to share knowledge

Date：2013-11-30 Author：zhaoyang Hits：1073

Hollow glass adhesive on hand , how to clean glass ?
After curing adhesive insulating glass is not strong sticky hands , rubbing his hands a couple of buttons ; such as hollow glass glued on the hands or uncured glass with a clean cloth moistened with acetone or xylene or 120 solvent oil ( the above three kinds of solvents in chemical store to buy , the general chemical acetone shop has sold . ) or NO.1 ( Lang Bo Wan ) plastic insulating glass cleaner ( available from NO.1 ( Lang Bo Wan ) hollow glass glue local dealership Manufacturers purchase ) wipe. ( Note the use of these solvents should be used with precautions of the solvent ) , such as hollow glass cured adhesive on the glass with a razor blade to scrape flat .

Neutral transparent plastic yellowing is why ?
Neutral yellowing transparent plastic glue itself is flawed , mainly cross-linking agent and thickener in neutral gum caused because these two materials with the " amine " is very likely to cause amino yellow , a lot of hollow glass glue imported brands is also therefore yellowing phenomenon. Another neutral transparent plastic if used in conjunction with acidic hollow glass glue , glue may lead to neutral after curing yellowing ; gum may be stored for a long time will have an impact or glue reacts with the substrate due .

What is the neutral curing adhesive surface wrinkling reason ?
Usually there are several reasons: the larger ( a ) expansion coefficients of the substrate ; ( b) displacement or vibration ; ( 3) some homemade glue itself too thin, less filler in the rubber and adds a plasticizer ( white oil ) , the plasticizer during curing glue ( white oil ) with a degree of volatilization volume of the rubber becomes so small, and thus shrink plastic wrinkling ; (d ) If the glue is easy to cure shrinkage thin wrinkle , sizing can reduce the thickness of thick this behavior occurs ( recommended sizing than 2mm ) .

Now some hollow glass, plastic strips with the market reaction has yellowing phenomenon , and why ?
This is mainly hollow glass, plastic and PVC strips react caused some businesses to reduce costs today , PVC tape adds a calcium -like substances, and calcium carbonate and silicone rubber will react , there will be discolored phenomenon, which is mainly the reason strips . If you choose a quality assurance hollow glass, plastic products , please check the tape quality problems. If it is poor quality hollow glass, plastic, yellowing of the magnitude of naturally bigger. Want to avoid this problem , not the best strip ; Or choose the right tape, good insulating glass glue. We emphasize engineering plastic before , it is best to do a compatibility test to see whether the plastic used in insulating glass product compatibility with other materials and then decide to use it or not .

There granular salt when the size of some hollow glass, plastic play out, but after some granular curing solution will automate , and why ?

This is a matter of choice on the plastic raw material formulations . Because some glue contains some cross-linking agent , at a lower temperature environment of crystallization , condensation cross-linking agent in the plastic bottle , after playing out will see the size of the granular particles of salt , but it slowly will melt , it will automation Solutions particulate after curing. This situation is not affecting the quality of plastic . This situation is mainly affected by low temperature is relatively large.

Users had to play on the structure of plastic vapor fireside , the maximum temperature is about 100 ℃ ~ 120 ℃, the marked plastic , plus a wrap apron , rubber seal , etc. So , let breathable, whether this case can be used structural adhesive ?

This case qualified structural adhesive can also be used , but structural adhesive strength is not here, it is used in curtain wall structural bonding , to its full strength of adhesion and tensile effect , with the waste of money here , the effect is not as acidic gel well. And if it is on a steam oven gasket uses the best selection of pure organic silicone rubber, good quality neutral curing adhesive capability after 150 ℃ high temperature , good acidity glue can withstand high temperature about 200 ℃ , which are sealed with glue made more moderate hardness , elasticity and better . If a higher temperature requirements, should use special heat insulating glass glue. But for this purpose I do not know how much pressure on the glue requirements for the sake of security should do a safety test .

Why is marked on the back of the mirror hollow glass, plastic, after some time, the mirror appears traces piebald or glue ?
Mirrors on the market usually have three different back Plating: mercury, silver and copper. Mirror mirror after sizing common spotted some time , this situation should be user acidic hollow glass, plastic, and rubber insulating glass acid to react with the material usually occurs , causing the mirror to see spots. Therefore, we emphasize should use neutral adhesive, glue and neutral oxime into an alcohol -and -two . If the copper bottom mirror selection oxime type neutral glue , then oxime be a slight corrosion of copper material , some time after the construction of the mirror to see behind the sizing of corrosion at the scene , if the switch to alcohol-based gel neutral this phenomenon will not occur . These are due to improper selection of substrate diversity. Therefore recommended that the user before using glue , it is best to do a compatibility test to see whether the glue and material compatibility before using . Selection of appropriate insulating glass plastic products in order to avoid unnecessary losses.

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