BNBM Yuwang waterproof coating series products can be divided into polymer waterproof coating, polymer modified asphalt waterproof coating and polymer cement waterproof coating.

WATERPROOF COATING SERIES

Special Waterproof Coating for Metal Roof

Waterproof coating ranges

★ Product Description download

According to the use performance, it can be divided into two types: normal type and heat reflection type.

Product Classification：

————

Special waterproofing coating for metal roofing is made of self-crosslinking acrylic waterproofing emulsion and filler. It is specially designed for coating on metal surface. It can be combined with woven polyester fabric to form the joints, joints and perforations of metal roofing. The complete waterproof system provides a perfect solution to solve the congenital leakage of metal roofing. At the same time, the coating material has fatigue resistance, aging resistance, low temperature flexibility and flexibility, which are completely suitable for open air environment and metal characteristics.

PRODUCT

INTRODUCTION

1.Do not work below 5 ° C or in the rain.
2.After construction, before drying and film formation, care should be taken to avoid strong sunlight exposure, and rainwater erosion should be avoided.

Precautions:

Base treatment of each part:
Lap joint: Apply the primer coating, spread the 15~20cm wide sewed polyester cloth on the lap joint, and then fully coat and infiltrate with the primer coating.
Lap joint: Apply the primer coating, spread the 15~20cm wide sewed polyester cloth on the lap joint, and then fully coat and infiltrate with the primer coating.
Raised/firmware: chimney, vent, fan port, etc., need to paint around, spread the size and shape of the woven polyester cloth, paint on the cloth and fully infiltrate, to ensure that Bubble, no wrinkles.
Gutter: Gutters, seams, etc. need to be treated locally, and then painted, consistent with the above.
Brush the heat reflective coating:
After the base layer treatment of each part is done, apply one to two heat-reflective metal roofing special waterproof coatings in the waterproof area, and the coating thickness should not be <0.5mm.
Reference dosage: 1.0mm thick coating film, the total amount of coating is about 1.8 ~ 2.0kg / m2.

Construction process:

The waterproof part is determined:
Metal panel lap joints, intersections with the parapet wall, fan joints, protruding roof ducts, air conditioning ducts, lighting panels, roof ridges, gutters, rivet firmware and other weak parts.
Waterproof parts treatment:
A. Requirements: Ensure that the metal roof panel is firm and the waterproof parts are free of dirt and dirt.
B. Treatment: If necessary, replace or add firmware, grind the dirt and dirt, remove dust and other dirt, until the metallic color is present, and then apply primer.

CONSTRUCTION METHOD

CONSTRUCTION

METHOD

CONSTRUCTION

Tensile strength retention rate/%≥80
Elongation at break/%≥100

Artificial weathering treatment

Tensile strength retention rate/%≥80
Elongation at break/%≥100

Acid treatment

Tensile strength retention rate/%≥80
Elongation at break/%≥100

Immersion treatment

ensile strength retention rate/%≥80
Elongation at break/%≥100

Heat treatment

Normal type----
Thermal reaction type≥0.8

Hemispheric emissivity

Normal type----
Thermal reaction type≥0.8

Solar reflectance (white)

Normal type----
Thermal reaction type＜20

Stain resistance (white or light)/% 

Normal type≥0.3
Thermal reaction type≥0.3

Peeling cohesiveness (N/mm)   

No cracking, no separation from the substrate

Low temperature bending/°C

No blistering, flaking, cracking

Heat resistance/ °C

≤15

Water absorption rate/%

≥65

Solid content /%

Normal type≥12
Thermal reaction type≥12

Tear strength/(N/mm)

Normal type≥150
Thermal reaction type≥150

Elongation at break /%

Normal type≥1.5
Thermal reaction type≥1.5

Tensile strength / MPa

Physical Index

JG/T375-2012《Acrylic High Elastic Waterproof Coating for Metal Roof》

STANDARD

EXECUTIVE

0.3MPa，120min，impermeable

Water impermeability

Gymnasium of Jinxi Refining and Chemical Plant

Waterproof Engineering

Waterproof Engineering

Jiangsu Provincial People's Hospita

Waterproof Engineering

Shenyang Locomotive Exhibition Hall

It is mainly used for waterproofing of roof and wall of steel structure factory.

SCOPE OF APPLICATION