QSil 6201

Material supplier:

CHT 

Industry:

Solar photovoltaics

Application:

Junction box potting

Material specs:

• QSil 6201 (UL pending)

A 100% silicone solids elastomer designed for electronic potting applications. This two-component system offers a fast curing, low modulus material.

• 100% solids
  
• Solvent free
• Fast cure time
• HB flame compliant
• Low modulus
• Good primerless adhesion to PPE, PPO Noryl and polycarbonate

Typical properties:

• Ratio by volume: 20:1
• Ratio by weight: 25:1
• Viscosity:
  • Base 6,000 cps
  • Catalyst 30 cps
• Chemistry:
  • Two component silicone
• Pot life/gel time:
  • Approximately 3 minutes
• Mixed colour: Black

Graco PR70v metering, mix and dispense system

Configuration

• Part number: PR7E-JAYA1EACA334411-JAJAANN3
• Blue side pump: 960
• Red side pump: 80
• Hoses:
  • 1/2 in x 15 ft (12.7 mm x 4.5 m), SS braid, PTFE lined hose
  • 3/16 in x 15 ft (4.7 mm x 4.5 m), SS braid, PTFE lined hose

Delivery methods:

• 30 litre off-board high volume tank with stand
• High volume reservoir equipped with automatic high/low level sensors and material transfer control
• 5:1 55 gallon drum supply pump for high volume reservoir
• 30 litre low volume tank with low level sensor
• Nitrogen kit for low volume reservoir

Accessories

• MD2 dispense valve with a 10:1 nose poppet valve
• Pressure transducers
• One needs at least a 32 element static mixer or a combo mixer for optimum mixing

All written and visual data are based on the latest product information available. Graco reserves the right to make changes at any time without notice. All other brand names or marks are used for identification purposes and are trademarks of their respective owners. The exact equipment configuration will vary and depend on factors such as rate of output, length and size of hoses, bead size desired, and container sizes. Graco material test: DR382

Precision dispense

The PR70 is a compact, reliable benchtop fixed and variable ratio metering, mix and dispense system that accurately meters, mixes and dispenses two-component medium to high-viscosity materials for a broad range of applications including bonding, sealing, potting, gasketing, encapsulation and syringe filling. Standard features include electric controls, digital shot entry, gel timer, purge and preventative maintenance counters.

Posi-ratio by positive displacement

The Graco PR70 uses positive displacement pumps to deliver unmatched consistency with ratio accuracy to ± 1% and two times increase in Mean Time Before Failure (MTBF). Multiple configurations support a wide variety of applications with a ratio range from 1:1 to 24:1 with variable drive and shot sizes from 2 to 70m ccs. The stainless steel design reduces the chance of material incompatibility while long-lasting wear parts mean lower cost of ownership. Learn more about the PR70.