For doors and Windows sealing, in addition to the profiles of doors and Windows themselves, the next is the role of sealing strips and sealant.

If you choose the door and window profiles with good thermal insulation performance, then whether the sealing strip and sealant are used correctly determines whether the doors and Windows can be more airtight in the future!

What’s the difference between a seal and a sealant?

The sealing strip is a kind of things sealed, so that it is not easy to open, play the role of shock absorption, waterproof, sound insulation, heat insulation, dust, fixed and other products, sealing strips have rubber, paper, metal, plastic, a variety of materials.

Sealant is a kind of sealing material that deforms with the shape of the sealing surface, is not easy to flow and has certain cohesiveness. It is an adhesive used to fill the configuration gap and seal it.

To put it crudely:

The sealing strip of the window is used around the glass, and the sealant is used at the position where the window frame meets the wall.

Therefore, when installing doors and Windows, sealing strips and sealant are indispensable!

Window sealing strip selection tips:

1, with the nose smell whether there is a bad smell, normal PVC material will have a little son alcohol taste, almost very small smell.

2. Wrap the sealing strip around the profile as tightly as possible and place it in high temperature for a period of time (on the roof or in a sunny place). See whether the surface of the profile and the sealing surface is stained and discolored, whether the dust on the surface of the sealing strip is yellow (it is easy to absorb the soil with oil) oil seepage, whether it is dirty hands.

3, some of the cheaper seal filler will be a lot, so the surface will not be very bright, those who are very cheap appearance is not bright is not advisable.

4, look at the specific gravity, how many meters per kilogram. There are many manufacturers, in the use of fillers in the pursuit of greater output, (save a little electricity) using talc, heavy calcium and other things to do the filler, greatly increased the proportion of sealing products, (our users are generally bought according to the kilogram, according to the length of the use of) this virtually but increased the cost. A heavy calcium seal, stretched back and forth several times by hand, will appear on the surface of a small white powder.