STWD9514 Movie props appliance and
speaker special polyurea protective coating
Product Description
Product descriptions STWD9514 is a 100% solid content aromatic spray polyurea elastomer. It bonds perfect well with wood materials which can greatly protect the high-end speakers in the theaters, cinema, auditorium, conference hall and other public places. It protects the speakers from damage of collision and abrasion and guarantee its high sound quality. STWD9514 polyurea is also suitable for the decoration protection of film props and park landscapes.
Product features and advantages.
*Solvent free, 100% solid content, safe, environmentally friendly and odor free.
*Rapid cure, can be sprayed forming on any bent, slope and vertical surfaces, no sagging.
*Coating film is compact, dense and flexibility, high adhesive strength with wood and foam substrate.
*Excellent impact resistance, collision resistance and abrasion resistance
*Excellent anticorrosion and chemical resistance to acids, alkali, salts etc.
*Good shock absorbing performance
*Excellent waterproof and moisture proof performance
*Excellent resistance to temperature variation
*Fast cure, application site back to service quickly
*Excellent durability to reduce maintenance cost of service life
*Extend the service life of sprayed structure
Product Applications
Film props, wooden electrical appliances, wooden furniture and other decorative protection
Products information
| Item |
A |
B |
| Appearance |
Pale yellow liquid |
Adjustable color |
| Proportion(g/m³) |
1.13 |
1.04 |
| Viscosity(cps)@25ºC |
650 |
720 |
| Solid content (%) |
100 |
100 |
| Mixing ratio(volume ratio) |
1 |
1 |
| Gel time(second)@25ºC |
3-5 |
| Dry time(second) |
10-20 |
| Theoretical Coverage(dry film thickness) |
1.03kg/ film thickness:1mm |
Physical properties of products
| Items |
Test standard |
Result |
| Hardness (Shore D) |
ASTM D-2240 |
52 |
| Elongation rate(%) |
ASTM D-412 |
150 |
| Tensile strength(Mpa) |
ASTM D-412 |
20 |
| Tear strength (N/km) |
ASTM D-624 |
65 |
| Impermeability(0.3Mpa/30min) |
HG/T 3831-2006 |
impermeable |
| Wear resistance (750g/500r)/mg |
HG/T 3831-2006 |
4.5 |
| Adhesive strength(Mpa)concrete base |
HG/T 3831-2006 |
3.1 |
| Adhesive strength(Mpa) steel base |
HG/T 3831-2006 |
11 |
| Density(g/cm³) |
GB/T 6750-2007 |
1.02 |
| Cathodic disbondment [1.5v,(65±5)ºC,48h] |
HG/T 3831-2006 |
≤15mm |
Product corrosion medium
| Acid resistance 10%H2SO4 or 10%HCI,30d |
No rust, no bubbles, no peel off |
| Alkali resistance 10% NaOH, 30d |
No rust, no bubbles, no peel off |
| Salt resistance 30g/L,30d |
No rust, no bubbles, no peel off |
| Salt spray resistance, 2000h |
No rust, no bubbles, no peel off |
| Oil resistance 0# dies el, crude,30d |
No rust, no bubbles, no peel off |
| (For reference: the above data is acquired based on GB / T9274-1988 test standard. Pay attention to the influence of ventilation, splash and spillage. Independent immersion testing is recommended if requires other specific data) |
Product construction environment
| Environment temperature |
0ºC-45ºC |
| Product spray heating temperature |
65ºC-70°C |
| Pipe heating temperature |
55ºC-65ºC |
| Relative humidity |
≤75% |
| Dew point |
≥3ºC |
Product application guide
| Recommend spray machine |
Polyurea spray equipment |
| Spray gun |
Air or machine self-cleaning coatings for spray gun |
| Static pressure |
2300-2500psi |
| Dynamic pressure |
2000-2200psi |
| Recommend film thickness |
1000-3000μm |
| Recoating interval |
≤6h |
Application note
- Agitate part B uniform prior to application, thoroughly mix the deposited pigments, or the product quality will be affected.
- spray polyurea within the proper time if the substrate surface is primed. For the application method and interval time of STWD polyurea speical primer please refer to STWD companies' other brochure.
- Always apply STWD spray polyurea 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 STWD spray polyurea series.
Product curing time
| Substrate temperature |
Dry |
Foot traffic |
Solid dry |
| +10ºC |
20s |
45min |
7d |
| +20ºC |
15s |
15min |
6d |
| +30ºC |
12s |
5min |
5d |
Note: the curing time varies with the environment condition especially the temperature and relative humidity.
Shelf Life
*From the manufacturer date and on the original package sealed condition:
A:10 months
B:10 months
*storage temperature:+5-35°C
Packing: Part A 210kg/drum, part B 200kg/drum
Make sure the product package sealed well
* store in cool and ventilated place, avoid direct sunshine exposure.
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