PU Adhesive – High Hardness & Rapid Curing

PU adhesive is a PU casting compound used for filter end cap applications, featuring fast curing and high hardness. It is widely used in fully automatic PU casting machines, semi-automatic PU casting machines, and manual casting processes. It is suitable for end cap casting and molding of air filters in commercial vehicles, cars, construction machinery, vacuum cleaners, air compressors, and industrial filters.

We tailor product development plans based on your specific requirements for products and processing procedures. By closely collaborating with experts in the application field, we have developed products suitable for both manual mixing and highly automated dispensing technologies to meet customers' diverse needs under complex working conditions. We have accumulated many years of experience in this field and are highly welcomed and trusted by our partners.

Product Catalogue Order Information

High Strength
Excellent Elasticity
Not Easy To Peel
Smooth Surface
No Irritating Odor

Applications
Common Specifications
Products & Applications

Applications

Commercial vehicle air filter

Construction machinery air filter

Air compressor air filter

Automotive air filter

Common Specifications

Table 1: Common Specifications of PU Adhesive
PU Glue Type		LM1252	LM1255	LM1335	LM1408	LM1402	LM1508
Shore Hardness		22±5	50±5	22/50±5	80±5	22±5	85±5
Total Density (kg/m³)		400+150	850+150	400/850+150	850+150	400+150	850+150
Tensile Strength (MPa)		P ≥ 0.8	P ≥ 0.8	P ≥ 0.8	P ≥ 1.2	P ≥ 1.2	P ≥ 1.2
Elongation (%)		≥ 180	≥ 180	≥ 180	≥ 120	≥ 280	≥ 120
Compression Permanent Deformation (%)		≤ 20	≤ 20	≤ 20	≤ 20	≤ 20	≤ 20
Falling Ball Resilience (%)		≥ 50	≥ 50	≥ 50	≥ 50	≥ 50	≥ 50
Mixed Mass Ratio=A:B		100:25	100:25	100:33	100:40	100:40	100:50
Liquid Color	A	Orange	Orange	Orange	Orange	Black	Black
Liquid Color	B	Khaki	Khaki	Khaki	Khaki	Khaki	Brown
Density (g/mL)	A	1.02±0.05	1.02±0.05	1.02±0.05	1.02±0.05	1.02±0.05	1.02±0.05
Density (g/mL)	B	1.22±0.05	1.22±0.05	1.22±0.05	1.22±0.05	1.22±0.05	1.22±0.05
Viscosity (MPa·s at 25 °C)	A	800–1000	800–1000	800–1000	800–1000	800–1000	800–1000
Viscosity (MPa·s at 25 °C)	B	170–250	170–250	170–250	170–250	170–250	200–250
Note: The above information is for reference only. For specific selections, please consult our sales personnel. Welcome to Consult

Products & Applications

Table 2: Application List for PU Adhesive
Application	LM1408	LM1252	LM1255	LM1335	LM1402	LM1508
Commercial Vehicles	√	√		√	√	√
Passenger Cars	√	√		√	√	√
Construction Machinery	√	√	√	√	√	√
Vacuum Cleaner	√		√	√	√	√
Air Compressors	√	√	√	√		√
Industrial Filters	√		√	√		√
Industrial Dust Removal			√			√
Other Air Filters	√	√	√	√	√	√
Oil Filters						√

Professional Advice

In the field of PU Adhesive, factors such as working pressure, curing time, and operating procedures can all influence the selection of PU adhesive. To help customers quickly identify the product that suits them, we provide product recommendations based on the specific application you provide and offer full-process technical support.

First, the bonding strength requirements for PU adhesive vary under different working pressures. For example, in industrial dust removal environments where the working pressure is relatively high, ordinary PU adhesive is not an ideal choice; instead, one should opt for high-strength PU adhesive.
Secondly, selecting an appropriate curing time can improve production efficiency and ensure that the product meets operating requirements within a suitable timeframe. This needs to be matched according to your specific production process to achieve the best efficiency level.
Additionally, consider the ease of use of the PU adhesive, such as mixing ratio, working time, and application temperature. Our team will provide full-process technical support based on your specific application, optimizing your production process to achieve cost reduction and efficiency improvement.

We are committed to providing you with the most professional service and the highest quality products, and we look forward to cooperating with you. If you have any questions or needs, please feel free to contact us.

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Customize Your Solution

PLM Filter provides customized solutions for automotive filter manufacturers to meet the specific needs of customers.

Expert Consultation

Production Process & Product Recommendations

Car Air Filter Production Process

Specializing in providing air filter paper, hot melt adhesive and plastic molds for car air filter production.

Truck Air Filter Production Process

Providing air filter paper, PU adhesive, special adhesive for rubber gasket and hot melt adhesive for truck air filter production.