The common problems of putty powder-Iota

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Service > 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 is dry and then polished it off powder;

2, exterior wall putty powder, surface coating is thin, in the summer high temperature,moisture evaporates quickly, the surface layer is not enough moisture curing, and therefore easy to powder.

3, the product of more than the shelf life of the bond strength, decreased significantly.

4, product storage, moisture absorption after the adhesive force is greatly reduced.

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

The solution:

1, interior wall putty layer polishing polishing time to master the proper, the best period isto be polished surface disappeared immediately after the watermark putty, polishing.Practice has proved that, 1~2m2 should be flattened or polishing processing.

2, putty for exterior wall surface after drying, to moderate sanding, and maintenance ofadequate water, general maintenance is divided into two or more than two times, if necessary, please use the transparent primer / 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 the shelf life, musttry to blow, after passing inspection, re construction;

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

5, the summer high temperature or strong wind weather conditions, in the application ofscraping putty with water before wetting metope, metope can be applied without the water surface putty.

Putty foaming

Phenomenon: the bubbles and over a period of time in the process of construction, puttysurface blister.

The causes of:

1, the base is too rough, rendering speed is 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. Because ofrich and high moisture content, void, putty, so airtight, the air is sealed in the cavity gap,not easy to remove.

4, construction after a period of time, only in the surface bubble burst, is mainly caused by the uneven mixing, powder, paste contains not dissolved after construction, absorb a large amount of water, swelling to form burst.

The solution:

1, the large area appears putty blistering, with the shovel directly crushed vesicles, again with appropriate putty scraping the surface layer foaming.

2 in general, putty after mixing evenly, set aside for 10 minutes, and then use an electric mixer stirring again on the wall.

3, the construction of second or the last layer foaming phenomenon, should be in before the watermark removal with a scraper pressure to get rid of that bubble, bubble surface does not appear.

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

5, excessive drying on a wall or a strong wind light environment as far as possible, firstwith water wetting wall after wall, no Mingshui, putty layer application of scraping.

Putty off

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

The causes of:

1, the old wall surface is very smooth (such as steel, polyurethane paint putty, putty powder) and surface bonding fastness.

2, the use of new wall template pouring, smooth surface and the presence of a large number of release agent (waste oil or silicone).

3, for the wood substrate, metal and other non mortar base material (such as three ply board, plywood, particleboard, wood etc.) directly applying putty, due to different surfaceexpansion and shrinkage ratio, water absorption rate of the products is relatively strong,interior wall putty not rigid with deformation, generally after 3 months falling off.

4, more than the shelf life of putty, the bond strength decreased.

The solution:

1, the eradication of abscission layer, according to the situation of the treatment;

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

3, use the degreasing cleaning agent to remove the surface of the mold release agent or other oils, then applying putty.

4, the plate two componet or special construction.

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

6, in the warranty period to use putty.

Yellow powder putty

Phenomenon: the construction of putty is completed soon, in part or in whole yellow.

The causes of:

The old wall occurred mainly in the interior wall putty, the use of a large number of PVAglue, glue aging decomposition, produce the unsaturated acid, unsaturated acid reacts with calcium ion in the calcium salt of putty, generate the corresponding yellow.