BW3-319 High-Strength Explosion-Proof Polyurea Coating for Special Vehicle Protection

Q: What is BW3-319 high-strength explosion-proof polyurea coating used for?

BW3-319 is a 100% solids high-strength anti-explosion coating used for special vehicle protection, vehicle body reinforcement, impact resistance, shock absorption and noise reduction.

Q: What chemical resistance data is listed for BW3-319?

The BW3-319 data sheet lists resistance to 50% H2SO4 or 15% HCl, 50% NaOH, 50 g/L salt solution, 2000 h salt spray and oil exposure, with no corrosion, no blistering and no peeling in the listed tests.

Product description

BW3-319 high-strength explosion-proof polyurea coating for special vehicle protection

Use it when a vehicle project needs spray-applied high-strength body reinforcement, impact resistance, shock absorption, waterproofing and corrosion resistance. Confirm substrate preparation, spray equipment, A / B component ratio, dry film thickness and recoat window before ordering. Key data to review: 100%, 4-6 s, 34 MPa.

BW3-319 Explosion-Proof Vehicle Protection Coating official product packaging image

What BW3-319 delivers

Bw319 is a 100% solids high-strength anti-explosion coating with a tough, dense matrix, strong vehicle-body adhesion and a balance of rigidity and toughness for special-purpose vehicle protection.

Rapid cureSolvent-free, 100% solids, safe, environmentally friendly and odor-free.
Dense protective matrixSeamless, tough and dense coating that can be sprayed on curved, inclined and vertical surfaces without sagging.
Vehicle-body bondingStrong adhesion firmly bonds with the vehicle body to enhance structural strength and protection.
Impact and shock controlExcellent impact resistance, collision resistance, abrasion resistance, shock absorption and rebound resilience.

Technical advantages for special vehicle protection.

Documented product advantages include 100% solids composition, rapid curing, strong adhesion, impact and abrasion resistance, chemical resistance, waterproofing performance and shock absorption. Final suitability should be verified against the vehicle substrate, environment and service condition.

100%Solid content reference from the product information table for coating build and purchasing review.

4-6 sGel-time reference for planning spray sequence, masking and recoat work.

34 MPaTensile strength reference for high-strength vehicle body reinforcement review.

11.3 MPaSteel adhesion reference for prepared metal substrate and coating-system compatibility review.

Application scope

Typical use areas for BW3-319.

Military armored vehicles, special vehicles, sedans, off-road vehicles, large passenger bus chassis, coach body reinforcement, 300 km/h EMU axles, frames and chassis, shock absorption and noise reduction.

Product features

Solvent-freeSolvent-free, 100% solids, safe, environmentally friendly and odorless.
Vehicle body reinforcementTough, dense matrix and strong adhesion help enhance vehicle-body structural strength.
Impact protectionExcellent impact resistance, collision resistance, abrasion resistance and shock absorption.
Durable serviceGood waterproofing, corrosion resistance and chemical-medium resistance help reduce vehicle-body maintenance cost.

Project fit

BW3-319 supports armored vehicles, special vehicles, off-road vehicles, coach reinforcement, bus chassis and rail vehicle frame protection where strength, toughness and shock absorption matter.

Substrate reviewConfirm metal surface treatment, primer compatibility and moisture condition before application.
Service condition reviewMatch film thickness, impact demand, chemical exposure and vehicle operating environment to the project specification.

Product information & technical data

Technical data for BW3-319 high-strength explosion-proof polyurea coating.

Review product information, physical properties and chemical resistance data for BW3-319 high-strength explosion-proof polyurea coating in a cleaner table structure optimized for technical comparison and procurement review.

Product information

Item	Part A	Part B
Appearance	Pale yellow liquid	Adjustable color
Specific gravity (g/cm³)	1.12	1.05
Viscosity (cps)@ 25°C	700	500
Solid content (%)	100	100
Mix ratio (by volume)	1	1
Gel time (s)@ 25°C	4-6
Theoretical coverage (DFT)	1.08 kg/m² film thickness 1 mm

Physical properties

Item	Test standard	Result
Hardness (Shore D)	GB / T 23446-2009	56
Elongation rate (%)	GB / T 23446-2009	340
Tensile strength (MPa)	GB / T 23446-2009	34
Tear strength (kN/m)	GB / T 23446-2009	95
Impermeability (0.4 MPa / 2 h)	GB / T 23446-2009	Impermeable
Wear resistance (750 g / 500 r) / mg	GB / T 23446-2009	4.3
Adhesive strength (MPa) steel base	GB / T 23446-2009	11.3
Cathodic disbondment [1.5v,(65±5)°C, 48 h]	HG / T 3831-2006	≤15 mm

Chemical resistance

For reference: the above data is acquired based on GB / T 9274-1988 test standard. Pay attention to the influence of ventilation, splash and spillage. Independent immersion testing is recommended if other specific data is required

Exposure item	Result
Acid resistance 50%H₂SO₄ or 15%HCl, 30 d	No corrosion, no blistering, no peeling
Alkali resistance 50%NaOH, 30 d	No corrosion, no blistering, no peeling
Salt resistance 50 g/L, 30 d	No corrosion, no blistering, no peeling
Salt spray resistance 2000 h	No corrosion, no blistering, no peeling
Oil resistance 0# diesel, crude oil, 30 d	No corrosion, no blistering, no peeling

Application environment & guide

Spray application conditions, equipment and recoat guidance.

Check temperature, humidity, equipment setup, film thickness and recoating interval before installation.

Application environment

Condition	Requirement
Environment temperature	0°C-45°C
Product pre-heat temperature	65°C-70°C
Pipe pre-heat temperature	55°C-65°C
Relative Humidity	≤90%
Dew point	≥3°C

Application guide

Guide item	Recommendation
Recommended spray machine	Professional polyurea spray equipment
Spray gun	Fusion-air purge or mechanical purge
Static pressure	2300-2500 psi
Dynamic pressure	2000-2200 psi
Recommended film thickness	1000-3000 μm
Recoating interval	≤6 h

Application note and substrate treatment

Metal surface: sandblasting for rust removal is recommended, reaching Sa2.5 grade in accordance with ISO 8501-1 or GB 8923 standard.
For treatment of other substrate materials, consult Colorful Whale Advanced Materials (Shanghai) Co., Ltd. technical personnel.
Agitate Part B evenly prior to application, thoroughly mix the deposited pigments, or the product’s quality will be affected.
Spray polyurea within the proper time if the substrate surface is primed. For the application method and interval time of Bw polyurea special primer please refer to Colorful Whale Advanced Materials (Shanghai) Co., Ltd.’s other brochure.
Always apply Bw319 on a small area before large application to check the mix ratio, color and spray effect are correct. For detailed information of application please refer to the latest instruction sheet of the application instructions of Bw spray polyurea series.

Curing time, shelf life and packing

Curing time, storage and packing information for project planning.

Use the curing profile, packaging, shelf-life data and storage details below to plan spray polyurea application timing, warehouse handling and bulk project purchasing.

Product curing time

Note: the curing time varies with the environmental conditions especially the temperature and relative humidity.

Substrate temperature	Dry	Foot traffic / Solid dry
+10°C	30 s	45 min / 7 d
+20°C	23 s	15 min / 6 d
+30°C	17 s	5 min / 5 d

Shelf life & packing

Item	Details
Packaging	Component A: 210 kg/drum · Component B: 200 kg/drum
Shelf life from manufacturing date	10 months in unopened original packaging
Storage temperature	+5-35°C
Package requirement	Keep the product package tightly sealed
Storage precaution	Store in a cool, ventilated place 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 the safe handling, storage and disposal of chemical products, users shall refer to the most recent Material Safety Data Sheet containing physical, ecological, toxicological and other safety-related data.

Integrity declaration

Colorful Whale Advanced Materials (Shanghai) Co., Ltd. guarantees all technical data stated in this sheet are based on laboratory tests. Actual testing methods may vary due to different circumstances. Therefore please test and verify its applicability. Colorful Whale Advanced Materials (Shanghai) Co., Ltd. assumes no responsibility except for product quality and reserves the right of any modifications on the listed data without prior notice.

FAQ

FAQ about BW3-319 high-strength explosion-proof polyurea coating.

These answers support engineering review, contractor planning and bulk project purchasing before ordering.

What is BW3-319 high-strength explosion-proof polyurea coating used for?

BW3-319 is a 100% solids high-strength explosion-proof polyurea coating used for special vehicle protection, vehicle body reinforcement, impact resistance, shock absorption and noise reduction.

Which vehicles are typical application targets for BW3-319?

Typical applications include military armored vehicles, special vehicles, sedans, off-road vehicles, large passenger bus chassis, coach body reinforcement, axles, frames and EMU chassis protection.

What chemical resistance data is listed for BW3-319?

The BW3-319 data sheet lists Acid resistance 50%H₂SO₄ or 15%HCl, 30 d, Alkali resistance 50%NaOH, 30 d, Salt resistance 50 g/L, 30 d plus salt spray resistance 2000 h and oil resistance, with no corrosion, no blistering and no peeling in the listed tests.

What equipment is recommended for BW3-319 application?

BW3-319 requires professional polyurea spray equipment, air or mechanical self-cleaning special polyurea spray guns, static pressure around 2300-2500 psi and dynamic pressure around 2000-2200 psi.

What site conditions should be controlled for BW3-319?

Control ambient temperature around 0°C-45°C, relative humidity ≤90%, product spray heating around 65°C-70°C, pipeline heating around 55°C-65°C and keep the substrate at least 3°C above the dew point.

What information should be reviewed before selecting BW3-319?

Review the TDS, vehicle substrate preparation, metal surface blasting requirements, film thickness, adhesion expectations, chemical exposure, impact-protection target and application equipment before selecting BW3-319.

Request technical documents

Explore polyurea products Spray polyurea systems Contact technical support

Request TDS, application guidance or bulk project support.

If you are evaluating BW3-319 for special vehicle protection, body reinforcement, impact resistance or shock absorption, request the latest technical data sheet, application guidance and project-specific compatibility review before ordering.