Hengshui Guangfeng Engineering Rubber and Plastic Co., Ltd.

>Product list of components polyurethane water-swelling glue
>Specifications: supports/boxes
>Expansion rate: times, times
>Density: .tons
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> One-component polyurethane water-swellable sealant is a one-component, solvent-free, water-swellable polyurethane amorphous paste. Guangfeng is an adhesive produced in strict accordance with the quality assurance system.
>Advantages of one-component polyurethane water-swellable sealant adhesive
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>Single-component composition
>Elastic
>Good gap-filling performance
>Withstands high dynamic loads
>No corrosion
>Shock absorption
>Non-conductive
>Can bond a variety of materials
>Single component Polyurethane water-swellable sealant adhesive
>The unique performance advantages of one-component polyurethane water-swellable sealant make it have a very wide range of application in practical engineering applications.
>Technical data of one-component polyurethane water-swellable water-stop adhesive
>Density (uncured)../ depends on color
>Stability (non-sag): very good
/> >Color: black
>Curing method: moisture curing
>Touch drying time: about minutes
>Cure rate: about/hour
>Elongation at break
>Operating temperature (continuous) ℃~＋℃
>Short-term (up to hours) ℃
>Shelf life (storage temperature lower than ℃) months
>
>Note:* At ℃ and relative humidity
>Application scope of one-component polyurethane water-swellable sealant adhesive
>
>One-component polyurethane water-swellable sealant is mainly suitable for industrial and civil applications Waterproofing of construction joints (including post-cast belts), deformation joints and embedded components in underground construction projects, municipal tunnels, protection projects, mountain and underwater tunnels, subway railways, sewage treatment tanks and other projects, as well as water leakage control in existing projects . Water-swellable water-stop glue is also used to seal structural joints and prevent pipe leakage, such as rough or smooth structural joints in concrete castings to seal the joints between prefabricated parts (such as entrance holes, box-type underground trenches, cable trenches , pipe trenches, etc.) joint sealing bolts around section steel or sealing of orthogonal pile walls such as gaps around pre-cast holes, etc.
> Has good chemical resistance: can withstand hydrochloric acid, seawater, sodium carbonate, hydrogen Chemical media such as potassium oxide can be directly used in drinking water projects. It is safe, non-toxic and is an environmentally friendly product.
>Water-swellable water-stop glue solidifies by reacting with moisture in the air. Generally, the lower the temperature, the lower the moisture content in the air, so the reaction process will also slow down.
>Instructions for use
>Surface preparation
>Use a wire brush to remove sand and concrete residue from the construction joints within the laying range, then wipe it with a rag or rinse it with high-pressure water, and the surface is ready It can be rough, it can be flat, it can be dry or it can be wet. When constructing water-swelling water-stop glue, heavy rain or long-term contact with water should be avoided. Otherwise, the water-stop glue will expand prematurely, causing the bond with the concrete to fall off and lose the anti-seepage function.
>Note: Do not construct in an environment below ℃ or above ℃. The most suitable temperature for the substrate is ℃~℃.
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>In order to ensure good adhesion between the water-swelling water-stop glue and concrete, sufficient curing time must be ensured. After construction, the time for the water-stop glue to harden on the surface should normally not exceed an hour. The next concrete pouring can be carried out only after the surface is completely dry to the touch.