BW6-189 One-Component Polyurea Concrete Joint Sealant

Product description

BW6-189 one-component polyurea sealant.

A moisture-curing polymer sealant for structural joints where low modulus, high elasticity, adhesion and dense cured waterproofing are important to leakage repair and movement-joint sealing.

BW6-189 One-Component Polyurea Concrete Joint Sealant official product packaging image

What BW6-189 delivers for joint sealing

The sealant reacts with moisture to form a rubbery elastomer, giving concrete-joint buyers a simpler single-component route for waterproof sealing and leakage reinforcement.

Single-component jobsite handlingNo A/B proportioning is listed. Hand scraper or pouring application supports straightforward sealing work on prepared joints.
Moisture-curing rubbery elastomerIt reacts with moisture in the atmosphere to form a rubbery elastomer for reliable potting and sealing performance.
Adaptable to joint deformationLow modulus, high elasticity and 400% elongation help the sealant adapt to deformation, expansion and settlement joints.
Curable in water and no moisture-cure bubblesThe data sheet lists curable in water and no air bubbles during moisture curing, useful for leakage-repair review.
Concrete adhesion referenceConcrete-base adhesive strength is listed as 1.3 MPa or substrate broken, supporting substrate-bond review before ordering.
Solvent-free and odorlessThe product is described as solvent-free, odorless and no VOCs for projects where application environment matters.

Technical advantages for concrete joint sealing.

Focus on the properties that matter most for sealant selection: ready-to-use handling, movement-joint accommodation, dense curing and elastic deformation-adaptive sealing performance.

1KSingle-component sealant. Ready-to-use one-component sealant for hand scraping, pouring and joint filling without two-component mixing.

400%High elongation. Elongation rate supports movement-joint sealing for expansion joints, deformation joints and settlement joints.

98±2%High solid content. High solid content supports dense curing and waterproof sealing with solvent-free, odorless and no-VOC performance.

1.0 MPa300% tensile modulus. 300% tensile modulus reference for elastic joint movement and deformation-adaptive sealing performance.

Application scope

Typical use areas for BW6-189.

Use BW6-189 for waterproofing and leakage reinforcement of roads, bridges and coal mines, building expansion-joint waterproof sealing, and deformation-joint or settlement-joint waterproof sealing in other buildings.

Joint sealing work

Building expansion jointsFor waterproofing and sealing of expansion joints in buildings after substrate preparation and suitability review.
Deformation and settlement jointsLow modulus and high elasticity support review for joints that need deformation accommodation.
Road and bridge leakage reinforcementThe application scope lists waterproofing and leakage reinforcement of roads and bridges.

Project fit checks

Concrete conditionConcrete should be solid, dense, flat, clean and dry, with loose concrete pre-treated and strengthened.
Application methodUse hand scraper, pouring or the listed triangular plastic bag extrusion method for gap filling.
Layer planningFor thick application, the sheet recommends two layers with each application interval in 6-30 hours.

Product information & technical data

Technical data for BW6-189 one-component polyurea sealant.

Review product information and physical properties for concrete-joint sealing and waterproof leakage-reinforcement planning.

Product information

Item	Result
Appearance	White
Specific gravity (g/cm3)	1.1
Viscosity (cps) @ 25°C	11000 +/- 1000
Solid content (%)	98 +/- 2
Surface dry time (min)	30 (25°C)
Recoat time (h)	Min 6 h; max 24 h (25°C)

Physical properties

Item	Test standard	Result
Hardness (shore A)	GB/T 22446-2009	55
Tensile strength (MPa)	GB/T 528-2009	1.5
100% tensile modulus	GB/T 528-2009	0.6
300% tensile modulus	GB/T 528-2009	1.0
Elongation rate (%)	GB/T 528-2009	400%
Adhesive strength (concrete base) MPa	GB/T 22446-2009	1.3 (or substrate broken)

Surface pre-treatment

Substrate preparation before BW6-189 joint sealing.

Check metal, concrete and other substrate conditions before hand scraping, pouring or joint filling so the sealant can bond to a suitable prepared surface.

Surface pre-treatment

SUBSTRATE	REQUIREMENT
Metal surface	Rust removal by sand blasting to Sa2.5 grade of ISO8501-1 or GB8923 standard is recommended.
Concrete surface	The surface should be solid, dense, flat, clean and dry, with no sanding, crusting, cracks or honeycomb surface.
Other materials	Consult technical personnel for treatment of other materials.

Application tools & instructions

Hand scraper, pouring and joint extrusion guidance.

Follow the data sheet application notes for low-temperature use, opened-material handling, gap filling and thick-application layer planning.

Application instructions

GUIDE ITEM	INSTRUCTION
Application tools	Hand scraper or pouring. Loose concrete surface should be pre-treated and strengthened.
Gap filling method	Pour the material into a triangular plastic bag and tie it tightly; cut a 6-15 mm opening at the sharp corner and extrude the material along the gap.
Low-temperature use	This product can be used at -10°C. In low-temperature environments, placing the paint bucket in an air-conditioned room at high temperature for more than 24 h is recommended.
Opened material handling	Pour out only as much as can be used at one time. Seal the lid in time and do not pour used liquid back into the original bucket.
Thick application	If the application thickness is thick, applying 2 layers is recommended, with each application interval in 6-30 h.

Application notes

NOTE	REQUIREMENT
Moisture-curing storage discipline	Seal the lid in time after use, and do not pour remaining liquid back into the original bucket.
Low-temperature readiness	For low-temperature application, precondition the paint bucket as recommended in the data sheet.
Thick joint filling	Plan two layers when thickness is high, with the listed 6-30 h application interval.

Curing time, shelf life and packing

Curing profile and storage information for site planning.

Use the curing and packing information below to plan opening time, layer interval, storage and quantity purchasing for joint sealing work.

Corresponding curing time

Note: curing times vary depending on environmental conditions, especially temperature and relative humidity.

Substrate temperature	Surface dry	Solid dry	Fully cured
+10°C	40 min	24 h	7 d
+20°C	30 min	15 h	7 d
+30°C	20 min	10 h	7 d

Product packaging and shelf life

Item	Details
Packing specification	5 kg/barrel; 10 kg/barrel
Storage temperature	5-35°C
Shelf life	6 months from the date of production in unopened state, with sealed product packaging ensured
Storage precaution	Store in a cool, ventilated environment and avoid direct sunlight

Health & safety / integrity declaration

Safety data, handling guidance and application verification.

Product health and safety information

For information and advice on handling, storage and disposal of the product, refer to the latest version of the Colorful Whale Advanced Materials (Shanghai) Co., Ltd. MSDS, including physical, ecological, toxicological and other relevant safety information.

Statement of integrity

The listed data is obtained according to relevant laboratory testing standards. Data may vary slightly under different environments and methods, so customers should carry out experimental demonstration before use.

FAQ

FAQ about BW6-189 one-component polyurea sealant.

These answers support concrete-joint sealing, leakage-reinforcement and procurement review before ordering.

What is BW6-189 one-component polyurea sealant used for?

BW6-189 is used for waterproofing and leakage reinforcement of roads, bridges and coal mines, waterproofing and sealing of building expansion joints, and waterproofing and sealing of deformation joints and settlement joints in other buildings.

How is BW6-189 applied?

The data sheet lists hand scraper or pouring application. For gap filling, material can be poured into a triangular plastic bag, tied tightly, and extruded through a 6-15 mm cut opening along the joint.

Does BW6-189 require two-component mixing or spray equipment?

No. The data sheet describes BW6-189 as a single-component material that is simple and easy to apply, with hand scraper or pouring application instructions.

Can BW6-189 cure in wet conditions?

The product features list curable in water, moisture-curing behavior, no air bubbles during moisture curing, and curing that is not sensitive to high or low temperature.

What surface preparation is listed for concrete and metal?

Concrete should be solid, dense, flat, clean and dry, without sanding, crusting, cracks or honeycomb surface. Metal rust removal by sand blasting to Sa2.5 grade of ISO8501-1 or GB8923 is recommended.

What curing and recoating timing should be reviewed?

At 20 degrees Celsius, the sheet lists 30 min surface dry, 15 h solid dry and 7 d full cure. If application thickness is thick, two-layer application is recommended with each application interval in 6-30 h.

Request technical documents

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Request TDS, application guidance or bulk project support.

If you are evaluating BW6-189 for concrete expansion joints, deformation joints, settlement joints, road and bridge leakage reinforcement or coal-mine waterproofing, request the latest technical data sheet and project-specific application review before ordering.