Operating instructions ------ Waterproof polyurethane coating between the bathroom layer
First, the material requirements
1. Polyurethane coating waterproof material (two-component), should be factory certification, should be re-tested after use.
A component is a polyether resin and diisocyanate and other raw materials, through polymerization and reaction end containing isocyanate-containing polyurethane prepolymer, the appearance of light yellow sticky, barrel, 20kg per barrel.
Component B is made up of curing agent, accelerator, toughening agent, antifungal agent, filler and dilute agent. The appearance is red, black, white, yellow and brown, paste, 40kg per barrel.
Second, the main equipment
1. General should be equipped with electric agitator (power 0.3-0.5KW, 200-500r / min), mixing tank (volume 10L), paint bucket (3L), plastic or rubber scraper, rolling brush, paint brush, Dry powder fire extinguishers.
Third, operating conditions
1. Priming the surface of the waterproof layer, must be dust, debris, etc. clean, the surface of the residual mortar lumps and protrusions should be leveled, cleaned, plastering, pressure is not, Yin and Yang should be wiped into the arc or Obtuse angle.
2. Brush the surface of the grass-roots waterproof layer should be kept dry, and to smooth, solid, no hollowing, cracking and sand from defects.
3. In the leveling layer ground leakage, pipe root, outlet, sanitary ware root (edge), to close the first smooth. Slope to meet the design requirements, components must be installed firmly embedded tightly. After acceptance.
4. Outstanding ground pipe root, floor drain, outlet, yin and yang, and other details, should first do additional layer additional processing, brushing the end of polyurethane adhesive, the inspection and completion of hidden works acceptance.
5. Waterproof layer used in various types of materials, primary treatment agent, xylene, etc. are flammable items, storage and storage should be far from the fire source, the construction operation, should be prohibited pyrotechnics.
6. The construction of waterproof layer shall not be carried out in rainy days and strong wind days. The ambient temperature of winter construction should not be lower than 5 ℃.
Fourth, the operation process
1. Process flow
Clean up the surface of the grass-roots → detail processing → preparation of primer → brushing primer (equivalent to cold base oil) → detail attached middle layer construction → first pass coating → second pass coating → third pass coating waterproofing layer construction → waterproof Floor
A test of water → → protective layer of the surface layer of waterproofing layer of water testing → → waterproof layer acceptance
2 waterproof layer construction, should be the primary surface of the dust and other debris removed, and wipe with a clean damp cloth.
3. Primer surface waterproofing layer, shall not be bumpy, loose, hollowing, sand, cracking and other defects, the moisture content is generally not more than 9%.
4. Priming (equivalent to cold base oil):
1) Preparation of primer, the first of a polyurethane material, B material to join xylene, the ratio of 1: 1.5: 2 (weight ratio) with uniform mixing, preparation should be based on specific circumstances, not too much.
2) brushing primer, according to the method of preparation of the primer mixture, with a long roller brush evenly brushing the surface of the grassroots, brushing the amount of 0.15-0.2kg / m2, painted after 4h at room temperature after the feel Non-stick, you can do the next procedure.
5. Coating waterproof layer construction: Polyurethane waterproof material is a polyurethane material, polyurethane material and xylene, a ratio of 1: 1.5: 0.2 (weight ratio).
1) in the construction of waterproof coating material, the mix ratio measurement to be accurate, and must be strong mixing with electric mixer.
2) additional layer construction: ground floor drain, pipe root, outlet, sanitary ware and other roots (edge), Yin, Yang and other parts should be in large area before brushing, do first two oil waterproof additional layer, two Side of the interface pressure 200mm. Brushing imitation of water material, the specific requirements are, at room temperature 4h table dry, then brush the second film waterproof material, 24h hard work, you can carry out large-scale waterproof coating construction.
3) Coating waterproof layer: the first waterproof coating layer: will have a good polyurethane coating with waterproof material, plastic or rubber scraper evenly coated in the primer has been coated with a good primer surface, the amount per square meter 0.8kg, not leaks and blisters and other defects, 24h curing, can be a second coating.
Second coating: in the cured coating, with the first coating perpendicular to the direction of mutual coating on the coating surface evenly, the amount of coating with the same as the first channel, shall not have leakage brush and bubble, etc. defect. 24h curing, and then according to the above formula and method of scraping the third film coating, coating volume to 0.4-0.5kg / m2 appropriate. Three film thickness of 1.5mm. The first test of water, in case of leakage, should be repaired, until there is no leakage so far.
In addition to the above brushing methods, but also can be used to roll a long layer of rolling brush perpendicular to the direction of the four sub-brushing. If conditions allow, can also be used spray method, but to master the thickness and uniformity. Details of the site is not easy to spray, brush should be done in the hard work.
4) in the coating waterproof layer before the construction, should organize the relevant personnel to seriously carry out the technical and use of materials to the end. After the completion of the construction of the waterproof layer, after 24 hours of water storage test, found no water seepage as qualified, and then concealed works inspection and acceptance, to pay the next road construction.
6. In the construction process encountered problems should be handled as follows:
1) When it is found that the coating viscosity is too large is not easy to brush, you can add a small amount of xylene dilution, the amount of added should not exceed 10% of B material.
2) When the coating is found to cure too fast, the impact of construction, can add a small amount of phosphoric acid or benzene sulfonyl chloride retarder, its addition should not exceed 0.5% of the material.
3) When the coating is found to cure too slow, affecting the construction, can be added a small amount of dibutyltin dilaurate as coagulant, its addition should not be more than 0.3% of the material.
4) coating waterproof layer smear 24h uncured still sticky phenomenon, brushing the second paint difficult, you can first coated with a layer of talcum powder, and then the Master operation, may not sticky feet, and will not affect the coating Film quality.
If there is a precipitate phenomenon, should be mixed with a material after preparation, otherwise it will affect the quality of the coating.
Fifth, quality standards
1. Guarantee the project
1) waterproof coating materials and non-woven technical performance, must meet the design requirements and the relevant standards, the product should be accompanied by factory certification, waterproof material quality certification, on-site sampling test, unqualified or re-test failed water Materials shall not be used.
2) polyurethane coating waterproof layer and its details and other practices, must meet the design requirements and construction specifications, and shall not have leakage of water phenomenon.
2. Basic Items:
1) polyurethane coating waterproof layer of the grassroots should be solid, clean surface, flat, Yin, Yang angle at the arc-shaped or obtuse angle.
2) polyurethane primer, polyurethane coating additional layer, the brushing method, lap, close the head should be consistent
Requirements, and should be bonded firmly, tight, Seal sealing, no damage, hollowing and other defects.
3) polyurethane coating waterproof layer, should be brushing evenly, protective layer and waterproof layer bonded firmly, no damage, uneven thickness and other defects.
6, finished product protection
1. Has been painted good polyurethane waterproof coating, should take timely measures to protect, do not do a good job in the protective layer, not wearing shoes with spikes into the interior, so as not to damage the waterproof layer.
2. Prominent ground pipe root, floor drain, drain, sanitary ware, etc. shall not touch the surrounding waterproof layer, parts shall not be displaced.
3. To drain, drain, etc. should be kept open, the construction to prevent debris fell into the water after the test should be carefully cleaned.
4. Polyurethane coating waterproof layer construction process, not cured before the Master move, so as not to damage the waterproof layer, causing leakage of hidden dangers.
5. Polyurethane coating waterproof layer construction process, should pay attention to the protection of the door, wall and other parts, to prevent pollution of the finished product.
7, should pay attention to quality problems
1. Hollow drum: waterproof layer hollowing generally occurs in the leveling layer and the waterproof layer between the coating and the seam, because the grass-roots water is too large, so that film hollowing, the formation of bubbles. Construction should control the moisture content, and careful operation.
2. Leakage: water leakage occurs in the pipe through the floor of the root, floor drain, sanitary ware and yin and yang, and other parts, because the pipe root, floor drain and other components loose, bonding is not strong, brushing is not tight Or waterproof layer of local damage, access to parts of the lap sealing the length of the lap caused by insufficient. In the waterproof coating before construction, should be carefully checked and repaired.
First, the material requirements
1. Polyurethane coating waterproof material (two-component), should be factory certification, should be re-tested after use.
A component is a polyether resin and diisocyanate and other raw materials, through polymerization and reaction end containing isocyanate-containing polyurethane prepolymer, the appearance of light yellow sticky, barrel, 20kg per barrel.
Component B is made up of curing agent, accelerator, toughening agent, antifungal agent, filler and dilute agent. The appearance is red, black, white, yellow and brown, paste, 40kg per barrel.
Second, the main equipment
1. General should be equipped with electric agitator (power 0.3-0.5KW, 200-500r / min), mixing tank (volume 10L), paint bucket (3L), plastic or rubber scraper, rolling brush, paint brush, Dry powder fire extinguishers.
Third, operating conditions
1. Priming the surface of the waterproof layer, must be dust, debris, etc. clean, the surface of the residual mortar lumps and protrusions should be leveled, cleaned, plastering, pressure is not, Yin and Yang should be wiped into the arc or Obtuse angle.
2. Brush the surface of the grass-roots waterproof layer should be kept dry, and to smooth, solid, no hollowing, cracking and sand from defects.
3. In the leveling layer ground leakage, pipe root, outlet, sanitary ware root (edge), to close the first smooth. Slope to meet the design requirements, components must be installed firmly embedded tightly. After acceptance.
4. Outstanding ground pipe root, floor drain, outlet, yin and yang, and other details, should first do additional layer additional processing, brushing the end of polyurethane adhesive, the inspection and completion of hidden works acceptance.
5. Waterproof layer used in various types of materials, primary treatment agent, xylene, etc. are flammable items, storage and storage should be far from the fire source, the construction operation, should be prohibited pyrotechnics.
6. The construction of waterproof layer shall not be carried out in rainy days and strong wind days. The ambient temperature of winter construction should not be lower than 5 ℃.
1. Process flow
Clean up the surface of the grass-roots → detail processing → preparation of primer → brushing primer (equivalent to cold base oil) → detail attached middle layer construction → first pass coating → second pass coating → third pass coating waterproofing layer construction → waterproof Floor
A test of water → → protective layer of the surface layer of waterproofing layer of water testing → → waterproof layer acceptance
2 waterproof layer construction, should be the primary surface of the dust and other debris removed, and wipe with a clean damp cloth.
3. Primer surface waterproofing layer, shall not be bumpy, loose, hollowing, sand, cracking and other defects, the moisture content is generally not more than 9%.
4. Priming (equivalent to cold base oil):
1) Preparation of primer, the first of a polyurethane material, B material to join xylene, the ratio of 1: 1.5: 2 (weight ratio) with uniform mixing, preparation should be based on specific circumstances, not too much.
2) brushing primer, according to the method of preparation of the primer mixture, with a long roller brush evenly brushing the surface of the grassroots, brushing the amount of 0.15-0.2kg / m2, painted after 4h at room temperature after the feel Non-stick, you can do the next procedure.
5. Coating waterproof layer construction: Polyurethane waterproof material is a polyurethane material, polyurethane material and xylene, a ratio of 1: 1.5: 0.2 (weight ratio).
1) in the construction of waterproof coating material, the mix ratio measurement to be accurate, and must be strong mixing with electric mixer.
2) additional layer construction: ground floor drain, pipe root, outlet, sanitary ware and other roots (edge), Yin, Yang and other parts should be in large area before brushing, do first two oil waterproof additional layer, two Side of the interface pressure 200mm. Brushing imitation of water material, the specific requirements are, at room temperature 4h table dry, then brush the second film waterproof material, 24h hard work, you can carry out large-scale waterproof coating construction.
3) Coating waterproof layer: the first waterproof coating layer: will have a good polyurethane coating with waterproof material, plastic or rubber scraper evenly coated in the primer has been coated with a good primer surface, the amount per square meter 0.8kg, not leaks and blisters and other defects, 24h curing, can be a second coating.
Second coating: in the cured coating, with the first coating perpendicular to the direction of mutual coating on the coating surface evenly, the amount of coating with the same as the first channel, shall not have leakage brush and bubble, etc. defect. 24h curing, and then according to the above formula and method of scraping the third film coating, coating volume to 0.4-0.5kg / m2 appropriate. Three film thickness of 1.5mm. The first test of water, in case of leakage, should be repaired, until there is no leakage so far.
In addition to the above brushing methods, but also can be used to roll a long layer of rolling brush perpendicular to the direction of the four sub-brushing. If conditions allow, can also be used spray method, but to master the thickness and uniformity. Details of the site is not easy to spray, brush should be done in the hard work.
4) in the coating waterproof layer before the construction, should organize the relevant personnel to seriously carry out the technical and use of materials to the end. After the completion of the construction of the waterproof layer, after 24 hours of water storage test, found no water seepage as qualified, and then concealed works inspection and acceptance, to pay the next road construction.
1) When it is found that the coating viscosity is too large is not easy to brush, you can add a small amount of xylene dilution, the amount of added should not exceed 10% of B material.
2) When the coating is found to cure too fast, the impact of construction, can add a small amount of phosphoric acid or benzene sulfonyl chloride retarder, its addition should not exceed 0.5% of the material.
3) When the coating is found to cure too slow, affecting the construction, can be added a small amount of dibutyltin dilaurate as coagulant, its addition should not be more than 0.3% of the material.
4) coating waterproof layer smear 24h uncured still sticky phenomenon, brushing the second paint difficult, you can first coated with a layer of talcum powder, and then the Master operation, may not sticky feet, and will not affect the coating Film quality.
If there is a precipitate phenomenon, should be mixed with a material after preparation, otherwise it will affect the quality of the coating.
Fifth, quality standards
1. Guarantee the project
1) waterproof coating materials and non-woven technical performance, must meet the design requirements and the relevant standards, the product should be accompanied by factory certification, waterproof material quality certification, on-site sampling test, unqualified or re-test failed water Materials shall not be used.
2) polyurethane coating waterproof layer and its details and other practices, must meet the design requirements and construction specifications, and shall not have leakage of water phenomenon.
2. Basic Items:
1) polyurethane coating waterproof layer of the grassroots should be solid, clean surface, flat, Yin, Yang angle at the arc-shaped or obtuse angle.
2) polyurethane primer, polyurethane coating additional layer, the brushing method, lap, close the head should be consistent
Requirements, and should be bonded firmly, tight, Seal sealing, no damage, hollowing and other defects.
3) polyurethane coating waterproof layer, should be brushing evenly, protective layer and waterproof layer bonded firmly, no damage, uneven thickness and other defects.
6, finished product protection
1. Has been painted good polyurethane waterproof coating, should take timely measures to protect, do not do a good job in the protective layer, not wearing shoes with spikes into the interior, so as not to damage the waterproof layer.
2. Prominent ground pipe root, floor drain, drain, sanitary ware, etc. shall not touch the surrounding waterproof layer, parts shall not be displaced.
3. To drain, drain, etc. should be kept open, the construction to prevent debris fell into the water after the test should be carefully cleaned.
4. Polyurethane coating waterproof layer construction process, not cured before the Master move, so as not to damage the waterproof layer, causing leakage of hidden dangers.
5. Polyurethane coating waterproof layer construction process, should pay attention to the protection of the door, wall and other parts, to prevent pollution of the finished product.
1. Hollow drum: waterproof layer hollowing generally occurs in the leveling layer and the waterproof layer between the coating and the seam, because the grass-roots water is too large, so that film hollowing, the formation of bubbles. Construction should control the moisture content, and careful operation.
2. Leakage: water leakage occurs in the pipe through the floor of the root, floor drain, sanitary ware and yin and yang, and other parts, because the pipe root, floor drain and other components loose, bonding is not strong, brushing is not tight Or waterproof layer of local damage, access to parts of the lap sealing the length of the lap caused by insufficient. In the waterproof coating before construction, should be carefully checked and repaired.
No comments:
Post a Comment