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Shandong Aonuo New Material Co,.Ltd

Add: Guangrao County, Dongying City, Shandong, P.R.China




Corrosion-resistant Polyurea for Speaker Box

Corrosion-resistant Polyurea for Speaker Box

We supply Spray Self-leveling and Brush Polyurea Waterproof Coatings for Floor and Roof. We are one of the first factories to invent polyurea formula and we have been focusing on polyurea for almost twenty years.We are expecting to become your long-term partner in China.

Product Details

Corrosion-resistant Polyurea  for Speaker Box


Polyurea coating is two components spray-up elastic coating applied in dry and warm condition. Component A is a half prepolymer through the reaction between hydroxyl terminal compounds and isocyanate. Component B is a mixture consisting of amino terminal resign and amino terminal chain extender, including activator, a little bit pigments and dispersive additives.

This kind of Corrosion-resistant Polyurea is super-long durable,waterproofing, abrasion resistant and appilcable to sound boxes in various hash environments for over 50 years.Suface granulation,noble and elegant, color optional and desired visual effect. Rapid spraying with special equipment can increase the coating effeciency.It can be applied to the surface of various sound boxes, especially to suface coating,lining,wear resistant layer, decoration layer and protective layer of large outdoor sound and sound with special surface effect. 


We are one of the first factories to invent polyurea formula in China and we have been focusing on polyurea for almost twenty years, covering North America, Mexico, South Korea, Japan, Australia, New Zealand and most of Southeast Asia market. We are expecting to become your long-term partner in China.


Product Parameter(Specification)




Solid Content



Viscosity (25℃)



Density (25℃)

A: 1.080-1.160 g/cm3
R: 1.030-1.100 g/cm3

A: 1.080-1.160 g/cm3
R: 1.030-1.100 g/cm3

Volume Mixing Ratio

A:R = 1:1

A:R = 1:1

Shelf Life

1 year

1 year

Gelation Time

10-60 seconds

5-10 seconds

Tack free Time

60-150 seconds

90-150 seconds

Curing Time

24 hours

24 hours

Time to Maximum Strength

7 days

14 days

Tensile Strength









Tearing Strength



Abrasion Resistance



Recommended Thickness



1. It takes seven days for the polyurea coating to completely aggregate and reach final strength.
2. The condition of spray equipments has a great effect on the property of coating.
3. All samples were cured in an oven at 65-70℃ for 24 hours before testing.


Product Features

(1)No VOC’s and little to no Odor

(2)Some systems are USDA and potable approved

(3)Excellent resistance to thermal shock

(4)Waterproof, seamless and resilient

(5)Unlimited mil thickness in one application

(6)Spray, hand mix and caulk grade materials

(7)Excellent bond strengths to properly prepared substrates

(8)Resistant to various solvents, caustics and mild acids

(9)Low permeability, excellent sustainability

Polyurea Waterproof Coatings Application

It has been already widely applied to waterproofing of industrial plants, large building roofs, cold storage moistureproof coating, dam, bridge, underground engineering, sewage treatment facility, swimming pool and power station.


Production Details

The Spray polyurea elastomer can be in different colors(Based on RAL K7 CLASSIC) and it can be applied on all the existing surfaces, like concrete, metal and wood, etc.


Product Qualification

Dongying Aonuo International Trade Co. Ltd.,a collection of scientific research and development, production and marketing into a modern high-tech enterprise, is specialised in manufacturing polyurea raw materials, polyurea spray machines and polyurethane elastomer curing crosslinking agents DMTDA&DETDA.


Based on the high requirements for products quality over the past twenty years, we have established long-term mutually beneficial business relationships with all of our customers .And we have exported to all over the world, especially Europe, USA, Canada, Australia, New Zealand, Mexico, South Korea, Japan and all the Southeast Asia countries.



Delivery, Shipping And Serving

Delivery Time: 5 days upon receipt of payment.

When we will ship the polyurea products to you, component A and B of polyurea are sealed in 220kg and 200kg drums, respectively.


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