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MGS LH340 Slow Hardener (Gallon/net 3.82 Kg)

MGS Hardener 340 is a slow-curing agent made for use with MGS L335 Laminating Resin. It’s ideal for large or complex laminations that need extra working time and precision. Approved by the German Federal Aviation Authority, it delivers strong, reliable performance for projects in aerospace, marine, and automotive industries. Designed for demanding applications, it ensures consistent strength and excellent load-bearing capabilities, even under challenging conditions.

MGS LH340 Slow Hardener (Gallon/net 3.82 Kg)

$140.50

Out of stock

SKU: MGSLH340-X Category:

MGS Hardener 340 is a slow-curing agent specifically developed for use with MGS L335 Laminating Resin. It is designed for large-scale laminations and complex applications requiring extended processing times. This hardener delivers consistent mechanical properties and superior static and dynamic load-bearing capabilities. Approved by the German Federal Aviation Authority, Hardener 340 is ideal for demanding aerospace, marine, and automotive composite applications.

Application:
  • Gliders
  • Motor Gliders
  • Sports Equipment
  • Model Airplanes
  • Molds and Tools
Mixing and Preparation
  • Mixing Ratio: 100 parts resin to 38 ± 2 parts hardener by weight or 45 ± 2 parts by volume
Application Techniques
Wet Layup
  • Description: Resin is applied directly to the reinforcement materials.
  • Best For: Prototyping and small-scale projects.
Vacuum Bagging
  • Description: Combines wet layup with vacuum pressure to improve laminate quality.
  • Common Uses: Aerospace, marine, and automotive industries where high strength and precision are critical.

Application Tip: Mix the resin until it is completely clear with no cloudiness. Avoid over-mixing or under-mixing, as either can compromise the curing process.

Processing Temperature
  • The recommended processing temperature range for Hardener 340 is 10°C to 50°C, with an optimal range of 20°C to 40°C.
Curing Process
  • Initial Curing:Curing occurs at room temperature.
  • Curing Agent Compatibility: MGS Hardener 335 is compatible exclusively with MGS L335 Laminating Resin
  • Post-Curing:Post-curing at temperatures between 50°C and 60°C is recommended to enhance thermal stability and mechanical performance.
Hardeners For This Product
Data Sheets