Sealant formula

A formula and gypsum technology, applied in the field of decoration and building materials, can solve the problems of high production cost of caulking paste, cracking, affecting construction quality and customer evaluation, etc.

Inactive Publication Date: 2017-12-22
浙江杰林新材料科技股份有限公司
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AI Technical Summary

Problems solved by technology

It is not easy to do this. The production cost of good quality caulking paste is also high, and the market price is high. In order to save costs, some construction units will rep

Method used

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Examples

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Embodiment Construction

[0009] According to mass percentage, 10KG of the mixture composed of the following components was obtained: heavy calcium powder 56.5%, ash calcium powder 6%, gypsum 34%, bentonite 1.5%, hydroxypropyl methylcellulose 2.5‰, retarder 2‰, Latex powder 1.25%, wood fiber 3‰. After testing, it meets the standard requirements of "Ceramic Wall and Floor Tiles Joint Filler (JC / T 1004-2006)" and "Building Interior Putty (JG / T 298-2010)". Add clean water into the barrel container first, and then add the above mixture while stirring. The water-cement ratio is about 0.22. After stirring evenly, let it stand for 3 minutes and start to use it for jointing of cement boards with a width of about 0.5CM-2CM, filling nails Eye openings and use within 1 hour. After inspection, the quality meets the requirements, and the product cost is between ordinary putty powder and ordinary caulking paste.

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Abstract

The invention provides a sealant formula which is low in cost and capable effectively saving production cost under the premises of guaranteeing binding strength of products, effectively reducing ratio of tangential to radial shrinkage and improving construction performance. The sealant formula is prepared from, by weight, 55%-60% of heavy calcium powder, 5%-8% of ash calcium powder, 30%-35% of plaster, 1.0%-1.7% of bentonite, 1%-1.5% of latex powder, 2%.-3%. Of hydroxypropyl methyl cellulose, 1%.-3%. of a retarder and 2%.-3.5%. of wood fiber.

Description

technical field [0001] The invention belongs to the field of decoration building materials, in particular to a caulking paste formula. Background technique [0002] The caulking paste is usually a gypsum board seam treatment material mixed with fine hemihydrate gypsum powder (gypsum of paris) and various additives. It generally requires high bonding strength, adhesion, small shrinkage deformation, and relatively high Good workability, construction performance and other characteristics. It is not easy to do this. The production cost of good quality caulking paste is also high, and the market price is high. In order to save costs, some construction units will replace the caulking paste with putty, which will cause the joints to shrink and deform and then crack. Obviously, this affects the quality of construction and customer reviews. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a low-cost caulking paste formul...

Claims

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Application Information

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IPC IPC(8): C04B28/14
CPCC04B28/14C04B2111/00672C04B14/28C04B14/043C04B22/064C04B14/104C04B24/24C04B24/383C04B2103/22C04B18/26
Inventor 王林敏
Owner 浙江杰林新材料科技股份有限公司
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