What is two-part (A:B) dispensing?
Many resins, polyurethanes and adhesives come as two parts — Part A and Part B — that must be combined at an exact ratio and mixed thoroughly before they cure. Get the ratio or the mix wrong and the material cures sticky, soft, brittle, or full of voids. A two-part resin dispensing machine takes over the measuring and mixing: it meters both parts at a fixed ratio and blends them as it dispenses, so every shot is consistent.
How Flovv dispenses
- Load Part A and Part B.
- Set the amount and dispense — Flovv meters both parts at the fixed ratio and blends them in the static mixing nozzle.
- Apply the mixed material to your mold, joint, or cavity before the pot life ends.
- Repeat with the same consistent shot, cast after cast.
What you can dispense
- Casting: two-part polyurethane and casting resins into molds
- Bonding & filling: two-part adhesive and filler applications
- Potting & encapsulation: protecting electronics and assemblies
- Sealing: gaskets and seals from reactive two-part systems
Why accurate metering matters
- Right ratio every time: a fixed A:B ratio prevents the off-ratio cures you get measuring by hand.
- Homogeneous mix: the static mixing nozzle blends thoroughly, with far fewer bubbles than hand stirring.
- Less waste and rework: fewer rejects, fewer re-pours.
- Repeatable: the same workflow shot to shot, so new operators get consistent results.
What Flovv is not
Flovv is a low-pressure system for reactive two-part liquids. It is not a thermoplastic injection molding machine (it does not melt or inject plastic pellets), not a high-pressure industrial dispenser, and not a 3D printer.
Honest limitations
- Viscosity: very thick systems are harder to dispense and mix cleanly at low pressure.
- Mix ratio: extreme or unusual A:B ratios may fall outside the machine's range — check yours with us first.
- Pot life: short-pot-life materials must be dispensed and placed quickly.
- Fillers: abrasive or fast-settling fillers can affect metering and nozzle wear.
- Bubble-critical parts may still need degassing or vacuum despite in-line mixing.
Consumables
Static mixing nozzles are consumables — replace one when the mix inside cures, when you switch material or color, or if it clogs. We recommend keeping spare nozzles in stock.
Ready to start? See the Flovv resin casting machine, or explore specific uses: polyurethane resin casting, low-pressure RIM casting, and foam casting. Browse compatible materials and resins.
