Water Swelling Polyurethane Sealant for Underground Construction

• CAS No.: 38891-59-7
• Formula: Mixture
• EINECS: 4253-34-3
• Bonding Function: Structural Adhesive
• Morphology: Solid-State
• Application: Construction
• Model NO.: TP640
• Material: Polyurethane
• Classification: Room Curing
• Main Agent Composition: Rubber
• Characteristic: Waterproof
• Promoter Composition: Filler
• Composition: Inorganic Material
• Color: White
• Product Name: Polyurethane Sealant
• Usage: Construction Building
• Volume: 310ml/600ml
• Feature: Waterproof
• MOQ: 2400tubes/1200sausages
• Packing: 24 PCS/Carton 20sausage/Carton
• OEM: Available
• Shipping: FedEx UPS EMS Sea
• Sample: Support
• Payment: Banck Account/Western Union/T/T/Paypal
• Transport Package: Carton
• Specification: 310ml/600ml
• Trademark: OEM
• Origin: China
• HS Code: 3214109000
• Production Capacity: 20, 0000/Week

Product Description

 

Product Description

TP640-220/400 Water Swelling Polyurethane Sealant

TP640-220/400 are a one-component, water-swelling elastomeric sealant. 

It is based on the prepolymer of polyurethane and contains a special water-

swelling unit. It has elastic rubber sealing water and double-sealing sealing

mechanism of water expansion and water-stopping after water. It is suitable

for waterproofing of concrete construction joints. Anti-leakage of various

types of embedded components.

 

Detailed Photos

 

Special Characteristics

1. Good water-stopping effect: it has the elastic sealing water of rubber and the double sealing water stopping mechanism of its own volume expansion and water stop after water, and can resist water pressure of 2.5Mpa.

2. Good expansion: high expansion rate, reaching more than 220% or 400%.
3. Convenient construction: single component, glue, standard caulking gun can be used.

4. Construction tight & close: It can be firmly attached to the concrete surface regardless of whether the base surface is wet, smooth or rough.

5. Safe and environmentally friendly: safe, non-toxic, it is an environmentally friendly product in contact with drinking water.

6. Cost-effective: The performance is better than the traditional construction joint waterproof material, such as steel edge rubber water-stop glue or tape, the price is reasonable.
 

 

Product Parameters

   

Model		TP-220	TP-400
Solid Content (10%) >=		95
Density (g/cm3)		1.4±0.1
Sagging(mm)<=		2
Tack free time(h) <=		12
7d Tensile Adhesive Strength (MPa)  >=		0.4	0.2
Low temperature flexiblility		No Cracking
Tensile Strength (MPa) >=		1.0
Elongation at break (10%)		400
Volume expansion ratio (10%) >=		220	400
Long-term soaking volume expansion ratio retention (10%) >=		90
Water pressure resistance (no water seepage) (MPa)		1.5	2.5
Thickness after full dry(mm) >=		2
Long-term soaking volume expansion ratio retention (10%) >=	Saturated Ca (OH)2	90
	5%NaCI	90
Harmful material limit	VOC g/L	200
	The free t oluene diisocyanate (TDI) g/kg	5

 

Application

 

Typical application

1. Railway tunnels, road tunnels, urban subways, underground structures of buildings, sewage treatment tanks, etc.

2. The construction joints of various underground structures are waterproof.

3. The underground structure is watered after the pouring.

4. All kinds of pre-buried pipelines, through-wall steel bars, H-beams, pile caps and other waterproof.

5. Various types of construction joints or structural cracks are leaked.
 

Packaging & Shipping

Company Profile

FAQ

1. Q: How can you guarantee the quality?
A: a. At first, our QC staff will inspect the raw material, 
b. During the process of before-filling, after-filling and before-delivery we will inspect the sealant too.
c. At last we will keep the sample for around 12 months in case there is any problem so that we can trace it and solve the problem. 

2. Q: How to solve the quality problem after sales?
A: Take photos or videos of the problem to us. After confirming the problem, we will make a satisfied solution for you.

3. Q: Why should you buy from us and not from other suppliers?
A: In the past 10 years, TENGYU has developed into a modern environmental protection adhesive accessories comprehensive platform enterprise integrating R&D, production, sales, and import & export services. Here, you can enjoy our most considerate service and guarantee. We have professional customer service to do after-sales service to ensure that the goods can be delivered on time.