The common problems of putty powder-Iota

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Service > The common problems of putty powder

The common problems of putty powder

The common problems of putty powder

1, interior wall putty powder polishing time is not well controlled, the surface has been dry and thenpolishing powder will take off;

2, putty powder, decorative coating is thin, high temperature in summer, the water evaporates quickly, the surface layer not enough moisture curing, and easy shedding.

3, the product over the shelf life, bond efforts greatly decreased.

4 products, improper storage, moisture absorption after adhesion decreased greatly.

5, the high water absorption, resulting in putty dry quickly, no sufficient moisture curing.

Solution:

1, the inner wall putty surface polishing to master appropriate polishing time, the best period is tosurface polishing putty immediately after the disappearance of the watermark, polishing. Practice has proved that, 1~2m2 should be flattened or finish polishing.

2, putty for exterior wall surface after drying, to moderate sanding, and water maintenance fully,general maintenance is divided into two or more than two times, if necessary, please use thetransparent primer against water (1:5) as the second water solution, the effect will be better.

3, the product must be used within the warranty period, if more than shelf-life, must try to scrape,after inspection, re construction;

4, the product must pay attention to the waterproof processing, there should be in a cool and dry place, and ensure the envelope intact.

5, summer wind or high temperature weather conditions, in the application of putty before wettingwith water wall, the wall surface can be applied without the water putty.

Foaming putty

Phenomenon: bubbles and over a period of time in the construction process, the surface of the foaming putty.

The reason:

1, the base is too rough, finishes too fast;

2, a construction putty layer is too thick, more than 2.0mm;

3, the moisture content is too high, and the density is too large or too small. The rich and high moisture content, voids, putty, so airtight, air is sealed in the cavity gap, not easy to remove.

4, construction after a period of time, only in the surface blistering burst, is mainly caused by unevenmixing, powder, paste containing not dissolved after the construction, a large number of moisture absorption, swelling and burst formation.

Solution:

1, the large area putty blistering, with the shovel directly crushed vesicles mouth, again withappropriate application of surface layer foaming scraping putty.

2 in general, putty mix, set aside for 10 minutes, and then use the blender again after mixing on the wall.

3, the construction of second or the last surface blistering phenomenon, should be in the front with a scraper to eliminate watermark pressure to get rid of global processing, ensure the putty surface does not appear bubble.

4, in particular the rough wall, general bottom material as far as possible to choose thick putty.

5, excessive drying on a wall or a strong wind light environment, to the extent possible with waterwetting metope, after the wall without water, the scraping putty layer of.

Putty off

Phenomenon: refers to the difference between the bond strength of putty and base, directly from the grassroots off.

The reason:

1, the old wall is smooth (such as toughened polyurethane putty, paint, putty powder) and surfacebonding fastness.

2, the new use of wall template pouring, smooth surface and contain a release agent (waste oil orsilicone).

3, for the wood base material, metal and other non mortar base material (such as plywood,particleboard, plywood, three wood etc.) on the direct application of putty, due to shrinkage andexpansion ratio of different surface, this kind of products are strong water absorption, interior wall putty cannot be rigid with deformation, generally after 3 months falling off.

4, for more than shelf-life, the bond strength decreased.

Solution:

1, to fall off in the following circumstances, targeted treatment;

2, grinding on the old wall, increase the surface roughness, and then, with the interface agent (10%glue or interface agent);

3, with the addition of oil to get rid of the surface cleaning agent release agent or other oils, thenapplying putty.

4, using plywood putty two-component or special construction.

5, marble, mosaic, ceramic tile wall surface use external wall renovation putty primer.

6, in the warranty period using putty.

Yellow powder putty

Phenomenon: refers to the construction of putty is completed, shortly after the partial or total yellow.

The reason:

Mainly occurs in the interior of old walls, old wall putty used a lot of PVA glue, glue agingdecomposition, produce unsaturated fatty acids, unsaturated fatty acids react with calcium ion in the calcium salt to form corresponding putty, yellow.