SMT

Adhesives have found their places in different SMT (Surface Mounting Technology) processes.

CollTech Group supplies excellent adhesive products for applications in this field and can formulate special adhesives to meet customer’s requirement.

SMA (Surface Mount Adhesive)

• Electrically insulating
• Excellent green (wet) strength
• High viscosity for dispensing dots having high aspect ratios
• High shear thinning and flow under pressure with quick recovery and limited flow after component placement (good thixotropic properties)
• Easy release from the dispensing tip with no tailing or stringing
• Ability to retain print or dot height. Low moisture absorption. Noncorrosive
• High strength after cure
• Low Tg (80°C–100°C)
• Fast curing per reflow
• Halogen-free
• Solvent-free

Underfiller

• Low CTE
• Capillary flow with low viscosity
• Halogen-free
• Solvent-free
• Temperature resistance
• Low Tg
• Curing per reflow
• Low moisture absorption, noncorrosive

Block&Fill

• Same chemical base for Block and Fill adhesive
• UV or thermal curing
• Low Tg
• Low CTE
• Halogen-free
• Solvent-free
• Low moisture absorption, noncorrosive
• Low curing-shrinkage