Soudal

Soudaflex 45FC PRO

Polyurethane sealant adhesive (AU) · AU · manufacturer-sourced

Check your container: This countdown is for the Polyurethane sealant adhesive (AU) variant. Similar-looking versions may have different times.

How long does Soudal Soudaflex 45FC PRO take to dry?

Short answer

Safe to touch: 40 minutes after application.
Caulk & sealant

Bead cure stages

Skin, tack-free and paint-ready are not the same moment

  1. Gun a continuous bead of Polyurethane sealant adhesive (AU)
  2. Tool it inside the working time
  3. Keep it dry until the stated water-ready time

This product’s stated stages Quoted at 73°F and 50% humidity

  • Safe to touch40 minutes

Worth noticing: The manufacturer states only one timing here (safe to touch, 40 minutes); nothing else is inferred.

Common mistake: Showering or painting at skin-over, when the bead is only crusted on the outside.

Caulk & sealant

Bond-strength path

Assembly, handling and full load are different stages

1 · AssembleClean, fit and apply the Polyurethane sealant adhesive (AU) version correctly.
2 · HoldKeep the joint undisturbed through its set or clamp stage.
3 · LoadUse full cure—not surface firmness—before demanding use.

Time the caulk cure

When did you run the bead?
Conditions that affect drying
Where?
Thickness

Stated times

  • Safe to touch40 minutes

From Soudal data sheet · checked 2026-10-25. Anything not listed isn’t stated by the manufacturer.

Manufacturer website: soudal.com.au

Conditions & fine print
  • Stated conditions: 73°F (23°C) and 50% relative humidity
  • Sealant skin and tack-free times are for a thin film. Deep joints cure from the outside in and take longer. Follow the current data sheet.
  • Region AU. Formulas can differ between countries; check your container.
  • Safe to touch: At 23°C (73°F) and 50% relative humidity.
  • Entered from the cited manufacturer documentation. Check the current label for the exact formula and region. Report outdated information
  • Actual results depend on preparation, thickness, ventilation, temperature, humidity, mixing and substrate.

Confirm this is your product

Closely named formulas, colors and regional versions can use different times. Match these details to your container before starting a countdown.

Exact listing
Soudal Soudaflex 45FC PRO
Variant
Polyurethane sealant adhesive (AU)
Region
AU
Listed use
joints, bonding
Timed stages recorded
touch
Source checked
2026-10-25

Documentation: Technical data sheet copy · Technical data sheet 12 Dec 2023

Condition attached to the stated time: At 23°C (73°F) and 50% relative humidity.

About this product

A polyurethane that skins in about 40 minutes and cures about 3 mm per 24 hours.

Using this specific product

Soudal Soudaflex 45FC PRO is listed here as the Polyurethane sealant adhesive (AU) version for joints and bonding. For sealing a joint, the useful question is not simply whether the surface looks finished—it is whether the exact next-action milestone shown above has been reached.

Before you start

  • Confirm the package says Polyurethane sealant adhesive (AU); related versions can use different timing.
  • For joints and bonding, pay particular attention to joint depth, tooling, ventilation and exposure to water.
  • At 23°C (73°F) and 50% relative humidity.

How to check readiness

Probe an inconspicuous edge for a continuous skin and follow the stated water-exposure milestone. Touch only a hidden edge first; a dry surface can conceal a soft layer underneath.

Avoid this mistake

Surface skin is not the same as through-cure, especially in a deep joint.

Compare with similar products

Keep going

Questions

How long does this product take to dry?

Soudal states: The sheet gives a skin-forming time of about 40 minutes. Conditions: At 23°C (73°F) and 50% relative humidity.. These are the manufacturer’s stated times, not a guarantee.

How does 45FC PRO compare with 40FC?

It skins in about 40 minutes against about 25, and both cure about 3 mm per 24 hours.

What affects how long this product takes to dry or cure?

Sealant skin and tack-free times are for a thin film. Deep joints cure from the outside in and take longer. Follow the current data sheet. Follow the product label for your conditions.

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