Shanghai United Industry Co., Ltd · Jinshan District, Shanghai, China
Electronic assemblies encapsulated with polyamide hot melt adhesive

Polyamide (PA) Hot Melt Adhesives

The high strength high temperature family — polyamide hot melts for bonds that have to hold when the part gets hot, cold or oily.

Overview

What This Category Is For

Polyamide hot melt adhesives are made from renewable raw materials such as castor or rape seed oil. They carry outstanding properties for bonds with higher requirements: very high heat stability, and the same reliability at low temperature. Special polyamide hot melts are capable of passing the temperature tests from -45 C to +135 C that are required in the electrical and electronic sector for the automobile industry, and they resist many chemicals and softeners. United Industry supplies polyamide hot melts in granule, powder and film form.

Core Advantages

  • Very high heat stability compared with polyester and polyolefin hot melts
  • Reliable at low temperature as well — special grades pass -45 C to +135 C testing
  • Resistant to many chemicals and softeners
  • Based on renewable raw materials such as castor and rape seed oil
  • Available as granule, powder and film so one chemistry covers several processes
Problems Solved

What Goes Wrong Without The Right Grade

01

Bonds that soften at service temperature and let the assembly move

02

Adhesives that go brittle below zero and crack in transport or in winter service

03

Softeners and plasticisers migrating out of the substrate and attacking the bond line

04

Encapsulation that has to survive an automotive temperature cycle test

Who Buys This Category

  • Automotive electronics and sensor assemblers
  • Low pressure moulding houses
  • Filter element manufacturers
  • Shoe material converters bonding counters and linings
  • Textile laminators needing maximum peel strength

Where It Is Used

  • Low pressure injection moulding in the electrical and automobile industries
  • Coating of insulating materials
  • Fixing technical components
  • Filter end cap bonding
  • Shoe counter and lining bonding
  • Textile lamination where peel strength decides
FAQ

Polyamide (PA) Hot Melt Adhesives FAQ

What makes polyamide different from polyester hot melts

Heat stability. Polyamide holds its strength far higher up the temperature scale, and special grades are qualified against the -45 C to +135 C tests used in automotive electronics.

Is polyamide hot melt made from petrochemicals

Our polyamide hot melts are made from renewable raw materials such as castor or rape seed oil.

Which forms are available

Granule, powder and film.

Does polyamide resist plasticisers

Polyamide hot melts are described as resistant to many chemicals and softeners, which is one reason they are used on PVC and plasticised substrates.

Which grade should I start with

Tell us the process — moulding, lamination or counter bonding — and the service temperature. That pair decides the grade faster than any data sheet.

Get A Quotation For Polyamide (PA) Hot Melt Adhesives

Tell us the grade, the form and the quantity, or describe the joint and we will shortlist from this category.