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Interior foundation waterproofing addresses basement internal walls like partitions and equipment room walls. Although not directly contacting soil, they can become damp or moldy due to capillary action, condensation, or slab leaks, affecting indoor environmental quality and equipment safety. This inside foundation waterproofing focuses on preventing moisture migration through walls or structural cracks into interior spaces. Materials are typically chosen for environmental friendliness and ease of application, such as breathable coatings or damp-proof layers. Suitable for basement partitions, storerooms, and utility areas, it enhances comfort and functionality of underground spaces, preventing health risks from dampness.

INTERIOR FOUNDATION WATERPROOFING PRODUCTS
KINJOYA POLYMER CEMENTKINJOYA POLYMER CEMENT
Two-component interior foundation coating made from acrylate polymer emulsion and cement. Solvent-free, non-combustible, non-toxic. Offers aging resistance, low-temperature flexibility, high adhesion, water resistance, and crack resistance.

Modified bitumen waterproof coating offers a cold-applied, versatile solution for roofs, basements, bridges, and culverts. Applied by spray or trowel, it accommodates low substrate requirements while ensuring reliable adhesion. Available in classic and weather-resistant formulations, the coating can be reinforced with polyester fabric to build multi-layer systemsâ??ideal for maintenance or new builds. This combination delivers both flexibility and high tensile strength, effectively bridging substrate cracks and resisting water ingress. Its ease of use at ambient temperatures reduces installation risks, making it a preferred choice for professionals seeking durable, field-adaptable waterproofing across demanding civil and building projects.

TYPES OF MODIFIED BITUMEN WATERPROOF COATING
KINJOYA JX CLASSICKINJOYA JX CLASSIC
Flexible waterproof coating made with asphalt, synthetic rubber, emulsifiers, and stabilizers. Combines rubber elasticity with asphalt waterproofing. Adapts to minor substrate deformation. Safe and environmentally friendly.
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JOYA FN EZSHIELDJOYA FN EZSHIELD
JOYA FN EZSHIELD is a high-performance, single-component water-based waterproof coating from liquid rubber with anti-aging agents, additives, and pigments. It forms a highly elastic, heat-resistant film for exposed waterproofing applications.
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JOYA FN EZFLEXJOYA FN EZFLEX
JOYA FN EZFLEX Rubber Asphalt Waterproof Coating uses polymers and catalytic additive to form stable asphalt-polymer bonds, supports plastering, coating, pouring, and sheet compounding, and is internationally leading waterproofing material.

Pitched roof waterproofing relies on their steep slope to rapidly drain rainwater, minimizing ponding. However, their complex structure includes numerous jointsâ??such as ridges, eaves, gutters, and tile overlapsâ??which are vulnerable to leakage. Additionally, pitched roofs often emphasize aesthetics, requiring waterproofing materials to integrate well with roofing tiles or decorative finishes. Thus, waterproofing must combine excellent performance with durability and visual appeal. Suitable for villas, traditional houses, and various sloped-roof buildings, it ensures efficient drainage and leak-free protection through careful joint design and precise construction, preserving architectural character.

Pitched Roof Waterproofing Products
KINJOYA FA PLAINKINJOYA FA PLAIN
High-performance APP polymer-modified bituminous membrane with a smooth, dense surface. Delivers heat resistance, adhesive strength, low-temperature flexibility, and high mechanical strength from polyester reinforcement.
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KINJOYA FM PLAIN SAKINJOYA FM PLAIN SA
Flexible SBS modified bitumen membrane with a self-adhesive compound on the bottom, protected by a peelable film. Top surface is covered with a polyethylene film. Cold construction, no heating required.
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KINJOYA PU 3H CLASSICKINJOYA PU 3H CLASSIC
High solids, VOC-compliant, single-component, moisture-curing polyurethane membrane. Available in Flat substrate and Sagging Resistant viscosities for horizontal and vertical surfaces. Excellent tensile strength and elongation.

Performance:
Waterproof - hydrostatic head 15000mmh2o
Water vapor permeable - WVTR 10000g/m2.24hr
Windproof - keeping warm
Air permeable - permeability rate 50mm/s
Temperature resistant - can be used by -150 ~ +260
Fire retardant - limited oxygen index 95
Chemical inert - resistant in most chemical
Germproof
Washing resistant

Application:
Special using clothes (army, protective, etc.)
Outdoor-sport (outdoor-jacket & -shoe)
Filtration materials (air filter bag)
Industrial sealant (gaskets, etc.)
Image transmission cable for army
Industrial products in fields of biology, electron, medicine, etc.
Waterproof & breathable panty liner and diaper
Waterproof construction materials.


Membrane size
Width1650, 1750, 2200mm
Length700~3400m (as requirements).

Product Description :
Yuhong SPU-301 one component polyurethane waterproofing coating is a kind of coating made by polymerization of isocyanate and polyether polyols, with addition of a variety of aids and fillers. It is applied on substrates to form a firm, soft, seamless sealing film by chemical reaction through, CNCO end group contacted with moisture in air.
Features;
It has one component which is easy to apply. The different types fits different applications.
It hasstrong adhesion, high strength and elongation, good elasticity, good high temperature and low temperature resistance, which make it fit to shrinkage and crack of substrates.
It has no benzene or coal tar, so it makes no pollution to environment.
Application Range;
It could be widely used in all kinds of moisture-resist and waterproofing projects, such as underground project, swimming pools, bathroom, balcony, parking lot and kitchen, as well as for non-exposed roof.
Construction Method;
Application Process: application preparation; substrate treatment and clean; additional waterproofing for details; application for roof; sealing of end joints and edge;application of protection or separation layers.
Substrate treatment: the substrate should be smooth, solid, clean, dry without sharp concave and convex, honeycomb, pocking marks, peeling free of bulge, greasy, apply sealant to concave around pipe root and do additional waterproofing layer in cracks.
Additional waterproofing layer: for details, such as concave and convex corners, pipe root, apply additional waterproofing layer, using type II to cracks, coat for 2;4 times(the thickness is about 1mm).
Apply waterproofing layer to roof deck: can coat for 2-3 times with scraper, but one coat is allowed too. When the first coat isnt sticky, can apply the second coat, the second coat should be vertical with the first coat. The batter coating rate is 2.0kg/m2for thickness of 1.5mm.

PANZHU WRAP Breathable Membrane HP-F49 Enhanced
The principle of PANZHU WRAP Breathable Membrane: Waterproof breathable working principle can be divided into two kinds-- microporous and hydrophilic groups, PANZHU WRAP waterproof breathable membrane is using the former. Due to the huge difference of diameter--- the minimum diameter of the water droplets 20 microns and the water vapor only about 0.0004 microns , water vapor can go through the microporous membrane easily.While because of the effect of surface tension, liquid water cannot pass the microporous membrane.Thus prevent the infiltration of water and make the breathable membrane waterproof.

PANZHU WRAP Breathable Membrane HP-F49 Enhanced
The principle of PANZHU WRAP Breathable Membrane: Waterproof breathable working principle can be divided into two kinds-- microporous and hydrophilic groups, PANZHU WRAP waterproof breathable membrane is using the former. Due to the huge difference of diameter--- the minimum diameter of the water droplets 20 microns and the water vapor only about 0.0004 microns , water vapor can go through the microporous membrane easily.While because of the effect of surface tension, liquid water cannot pass the microporous membrane.Thus prevent the infiltration of water and make the breathable membrane waterproof.
Excellent Characteristics of PANZHU WRAP breathable membrane

Waterproof: PANZHU WRAP breathable membrane can reach the EU standard of European Union. The water-proof performance can bear two meters high water column for 24 hours. The water-proof performance is excellent
Air tightness: PANZHU WRAP breathable membrane can reach the standard of use
Permeability: Water vapour transmission of PANZHU WRAP breathable membrane reaches the international standards of 500 g / ã?¡. 24 h, equivalent to 29.2 of the U.S. perm, Canada's 1665ng/Pa/s/m².
Durability: PANZHU WRAP breathable membrane is made of three layers.The upper and lower outer layers are protective layers, which helps the breathable membrane to have good tensile strength and anti-slip, so that it is suitable for sloping roof.
Application of PANZHU WRAP breathable membrane

Waterproof: PANZHU WRAP breathable membrane can reach the EU standard of European Union. The water-proof performance can bear two meters high water column for 24 hours. The water-proof performance is excellent
Air tightness: PANZHU WRAP breathable membrane can reach the standard of use
Permeability: Water vapour transmission of PANZHU WRAP breathable membrane reaches the international standards of 500 g / ã?¡. 24 h, equivalent to 29.2 of the U.S. perm, Canada's 1665ng/Pa/s/m².
Durability: PANZHU WRAP breathable membrane is made of three layers.The upper and lower outer layers are protective layers, which helps the breathable membrane to have good tensile strength and anti-slip, so that it is suitable for sloping roof.
Application of PANZHU WRAP breathable membrane

Waterproof: PANZHU WRAP breathable membrane can reach the EU standard of European Union. The water-proof performance can bear two meters high water column for 24 hours. The water-proof performance is excellent
Air tightness: PANZHU WRAP breathable membrane can reach the standard of use
Permeability: Water vapour transmission of PANZHU WRAP breathable membrane reaches the international standards of 500 g / ã?¡. 24 h, equivalent to 29.2 of the U.S. perm, Canada's 1665ng/Pa/s/m².
Durability: PANZHU WRAP breathable membrane is made of three layers.The upper and lower outer layers are protective layers, which helps the breathable membrane to have good tensile strength and anti-slip, so that it is suitable for sloping roof.
Application of PANZHU WRAP breathable membrane

Waterproof: PANZHU WRAP breathable membrane can reach the EU standard of European Union. The water-proof performance can bear two meters high water column for 24 hours. The water-proof performance is excellent
Air tightness: PANZHU WRAP breathable membrane can reach the standard of use
Permeability: Water vapour transmission of PANZHU WRAP breathable membrane reaches the international standards of 500 g / ã?¡. 24 h, equivalent to 29.2 of the U.S. perm, Canada's 1665ng/Pa/s/m².
Durability: PANZHU WRAP breathable membrane is made of three layers.The upper and lower outer layers are protective layers, which helps the breathable membrane to have good tensile strength and anti-slip, so that it is suitable for sloping roof.
Application of PANZHU WRAP breathable membrane