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{"title":"Oem Odm Js Polymer Cement Based Waterproof Coating -10\u00b0C No Cracks","imgUrl":"https:\/\/img.chinax.com\/nimg\/64\/27\/7949552fd2dbf11cf9778e72876c-200x200-1\/oem_odm_js_polymer_cement_based_waterproof_coating_10_c2_b0c_no_cracks.jpg","attrs":{"Supply Ability":"1000000kg per Month","Film Characteristic":"Forms flexible waterproof film after curing","Brand Name":"shhous","Solid content \/%":"\u226570"}}
{"title":"JS Polymer Cement Waterproof Coating Liquid For Indoor Projects","imgUrl":"https:\/\/img.chinax.com\/nimg\/fe\/90\/fc5153db5cd34ed6433b3c292fde-200x200-1\/js_polymer_cement_waterproof_coating_liquid_for_indoor_projects.jpg","attrs":{"Model Number":"1:1","Construction Method":"Brushing, Roller Coating, Spraying","Minimum Order Quantity":"1000kg","Substrate Condition":"Construction allowed on damp base without standing water"}}
{"title":"Polymer Modified Cement Waterproofing Coating For Bathroom Kitchen Balcony","imgUrl":"https:\/\/img.chinax.com\/nimg\/33\/ea\/c6c914f5cbd46c837ed2868e60f5-200x200-1\/polymer_modified_cement_waterproofing_coating_for_bathroom_kitchen_balcony.jpg","attrs":{"Supply Ability":"1000000kg per Month","Impermeability":"Anti-seepage performance on mortar negative-side","Brand Name":"shhous","Solid content \/%":"\u226570"}}
{"title":"Non Toxic And Odor Safe Polymer Modified Cement Waterproofing Water Based","imgUrl":"https:\/\/img.chinax.com\/nimg\/f5\/b8\/5a6aa3bc47a74b4d55369e94d324-200x200-1\/non_toxic_and_odor_safe_polymer_modified_cement_waterproofing_water_based.jpg","attrs":{"Supply Ability":"1000000kg per Month","Construction Substrate":"Applicable on damp substrate without standing water","Brand Name":"shhous","Tensile Strength":"Type\u2160\u22651.2MPa, Type\u2161\/\u2162\u22651.8MPa"}}
{"title":"Bulk Supply Js Polymer Modified Cement Waterproofing High Flexibility For","imgUrl":"https:\/\/img.chinax.com\/nimg\/3c\/84\/a2b4491d2871017a23cf39adae5f-200x200-1\/bulk_supply_js_polymer_modified_cement_waterproofing_high_flexibility_for_building_projects.jpg","attrs":{"Supply Ability":"1000000kg per Month","Water Impermeability":"Waterproof at 0.3\u202fMPa for 30\u202fmin","Brand Name":"shhous","Product Name":"JS Polymer-Cement Waterproof Coating"}}
{"title":"Flexible Rigid Composite Polymer Modified Cement Waterproofing Type\u2160 No Crack At","imgUrl":"https:\/\/img.chinax.com\/nimg\/7a\/66\/5b3485973a458a43f6836c591ec0-200x200-1\/flexible_rigid_composite_polymer_modified_cement_waterproofing_type_e2_85_a0_no_crack_at_10_e2_84_83.jpg","attrs":{"Supply Ability":"1000000kg per Month","Application Method":"Brush, roller and trowel application available","Brand Name":"shhous","Product Feature":"Combined rigid-flexible waterproof performance"}}
Polymer‑Cement Waterproof Coating (JS Coating) Construction Method for Bathroom Waterproofing
1. Base Surface Treatment
The bathroom base surface shall be firm and solid. Remove dust, oil stains, release agent and loose sanding parts. Repair holes, cracks and grooved areas with polymer cement mortar for compaction and leveling.
Chisel and clean the surroundings of pipe roots and floor drains, then repair compactly. Form R20‑R30 mm rounded corners at internal corners without sharp edges.
Construction is allowed on damp substrate, but no standing water is permitted. Apply interface agent to reinforce severely sanding base surfaces.
2. Additional Layers for Key Details
Locations: internal corners, floor drains, pipe roots, through‑wall sleeves and door sills between wet and dry zones. Width of additional layer ≥250 mm. Two‑coat‑one‑fabric method is optional: apply a thin coat of JS coating, lay non‑woven fabric, ensure full saturation without hollowing and wrinkles, then apply another coat to cover the fabric after surface‑dry.
Special reinforcement shall be carried out around pipe roots and floor drains, which are high‑risk leakage points.
3. Large‑Area Coating Construction
Weigh liquid component and powder component according to product mixing ratio. Stir by electric mixer until homogeneous without particles. Mix on‑site for immediate use. Do not add extra water for dilution.
Apply with brush or roller. Use multiple thin coats in cross directions; each subsequent coat shall be perpendicular to the previous one. Single heavy‑coat application is forbidden to avoid cracking and incomplete curing.
Apply the next coat only when the previous one is surface‑dry and non‑tacky. Interval: 2‑4 h at normal temperature.
Total dry‑film thickness for bathroom ≥1.5 mm, apply in 2‑3 coats. Theoretical consumption: approx. 2.0‑2.4 kg/㎡. Waterproof height for walls: ≥1.8 m for shower area; ≥300 mm for other wall sections.
4. Curing, Water‑Closing Test & Protective Work
After completion of full construction, cure naturally for 24‑48 h at normal temperature. Extend curing period under low‑temperature and poor‑ventilation conditions. No treading or water splashing before full curing.
Perform water‑closing test only after full curing. Water depth: 20‑30 mm, keep for 24‑48 h. Pass the test if no leakage occurs on the ceiling of lower floor.
After passing water‑closing test, construct cement mortar protective layer or directly lay tiles with suitable tile adhesive.
5. Construction Notes
Suitable construction temperature: 5℃‑35℃. Do not construct in rainy weather or heavy‑dew environment with extremely poor ventilation.
Use mixed slurry within pot life. Discard solidified clotted slurry; do not reuse by adding water.
Avoid missing or insufficient coating. Ensure full coverage at corners and pipe roots.
No chiseling or piercing by sharp objects after waterproof layer completion. Repair any damaged areas thoroughly.
Storage: Protect liquid component from frost and sunlight; keep powder component moisture‑proof.
Technical Indexes
No.
Test Item
Type I
1
Solid content /% ≥
70
2
Tensile strength,
untreated /MPa ≥
1.2
Retention after heat treatment /% ≥
80
Retention after alkali treatment /% ≥
60
Retention after water immersion /% ≥
60
Retention after UV treatment /% ≥
80
3
Elongation at break,
untreated /% ≥
200
After heat treatment /% ≥
150
After alkali treatment /% ≥
150
After water immersion /% ≥
150
After UV treatment /% ≥
150
4
Low-temperature flexibility (Φ10 mm bar)
-10°C no cracks
5
Bond strength,
untreated /MPa ≥
0.5
Damp substrate /MPa ≥
0.5
Alkali treatment /MPa ≥
0.5
Water immersion /MPa ≥
0.5
6
Impermeability (0.3 MPa, 30 min)
Impermeable
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2000
Total Annual:
17790000-17790000
Employee Number:
150~200
Ecer Certification：
Verified Supplier
Weifang Shihua Chemical Building Materials Co., Ltd.
Founded in 1994, the company has a registered capital of RMB 100.86 million and covers a plant area of over 30,000 square meters. It mainly manufactures more than 100 types of products across five major series, including Shihua‑brand po...
Weifang Shihua Chemical Building Materials Co., Ltd.
Founded in 1994, the company has a registered capital of RMB 100.86 million and covers a plant area of over 30,000 square meters. It mainly manufactures more than 100 types of products across five major series, including Shihua‑brand po...
