Precision-V 3649 Solvent

Techspray Precision-V 3649 is a heat transfer fluid identified by the manufacturer as a replacement for 3M Novec 649. If you are replacing an existing fluid, start with the exact grade and the equipment requirements rather than treating every Novec or Fluorinert product as interchangeable.

Precision-V 3649 and Novec 649

Techspray describes Precision-V 3649 as chemically identical to Novec 649 and lists a boiling point of 49°C. This is a grade-specific manufacturer statement, not a blanket compatibility claim for other fluids or every cooling system.

Consult Techspray’s Precision-V 3649 product information and technical data sheet. Request the current safety data sheet for your review and confirm the equipment manufacturer’s requirements before changing fluid.

What to include in your enquiry

• The current fluid name and grade, including any mixtures or additives.
• The equipment manufacturer, model and intended application.
• Normal operating temperatures and any startup or shutdown conditions.
• The materials in contact with the fluid, including seals and hoses.
• The quantity required, delivery location and planned changeover date.

These details help establish which product documentation and compatibility checks are needed. Confirm availability and lead times with ProfTek; do not assume stock or sample availability from a catalogue listing.

Plan the fluid changeover

Include draining, cleaning, compatibility testing and commissioning in the transition plan. Ask the equipment manufacturer whether the change affects maintenance or warranty requirements. Do not mix fluids unless the relevant manufacturers have confirmed compatibility.

Read our Fluorinert vs Novec selection guide and Novec replacement planning guide, or compare the heat transfer fluid range.

Request technical advice and a quote for Precision-V 3649. Send your application details so ProfTek can help identify the next step.