Flextra
Flextra is perfect for sealing outdoor joints around door and window frames, sidings and glass in window frames.
Flextra is a thermoplastic sealant from Mulco for joints around door and window frames, siding and glass in window frames. Mulco specifies a product temperature of 5–30 °C and a surface temperature of -30 to 40 °C during application, with no frost or ice on the surface. Cranco carries it, and which counter has it on the day changes, so ask at the counter.
Flextra is a one-part thermoplastic sealant made by Mulco for outdoor joints around door and window frames, sidings and glass in window frames. It carries ASTM C920 Type S Grade NS Class 25 Use NT and CAN/CGSB-19.13-M87, the product must be 5–30 °C and the surface -30 to 40 °C during application, and it holds from -40 to 50 °C in service.
Cranco carries Mulco at Concord, Barrie and Mississauga. Call the branch to confirm the colour and size in stock, and the price.
FEATURES AND BENEFITS
- First-quality thermoplastic rubber-based sealant.
- Ideal for exterior applications.
- Instant resistance to rain.
- Extra-flexible, extra-adherent and extra-durable.
- Adheres to almost all surfaces.
- Multi-purpose.
- 2-minute tack-free time.
- Will remain glossy and dirt-free.
What is Mulco Flextra used for?
Outdoor joints between two perpendicular surfaces that move with temperature: door and window frames, sidings, and glass in window frames. Mulco lists steel, galvanized steel, painted or stained wood, aluminium, concrete, masonry, glass, fibreglass and PVC as substrates it adheres to. Mulco says exterior use only.
Is Mulco Flextra paintable?
Yes. Mulco permits latex paint more than 24 hours after application. The paint may crack if the joint moves farther than the paint can stretch. Flextra is an exterior sealant; the paint’s elasticity and compatibility still need to suit the joint.
How fast does Flextra set?
Mulco does not publish a numerical tack-free or full-drying time. Drying depends on temperature, relative humidity and ventilation, and latex paint can go on more than 24 hours after application. Confirm the drying time for the job conditions before scheduling work that depends on it.
Can you use the clear Flextra on any siding?
Mulco says to test the siding colour first, because the colour of some materials washes out under the solvent and will yellow or tint the sealant. Where the colour matters, Mulco prefers an opaque colour to the clear or translucent grade.
Where can you buy Mulco Flextra?
At Cranco's counters in Concord, Barrie and Mississauga. The addresses, phone numbers and hours are further down this page. Mulco's sheet names no colour list and no package sizes, so call ahead and the counter will tell you what they have.
Limitations from Mulco
Before using the clear or the translucent product, test the resistance of the siding colour, the colour of some materials wash out by solvents and will yellow or colour the sealant. Does not adhere to polyethylene, polypropylene, recycled plastic, Teflon or other comparable materials. Make sure the joint variation does not exceed the "FLEXTRA" elasticity. When "FLEXTRA" is painted, the paint may crack if "FLEXTRA" supports a movement higher than the paint elasticity. The drying time of "FLEXTRA" depends on temperature, relative humidity and ventilation. The shelf life is diminished by warehousing over 25°C (77°F). Not for joints submerged in water for prolonged periods of time. Use outdoors only; do not use inside houses. When possible, the use of opaque colour is preferable to the use of clear or translucent product. Adhesion on material not specifically mentioned cannot be guaranteed. It is up to the customer to make his own performance tests or to consult our technical department.
Branches
Call the branch to confirm what it has in stock today, and the price.
Colours
Mulco names its colours on the chart below.
Call the branch for the colour you need.
Data sheet
- Mulco Flextra data sheet Mulco, PDF, edition of 10/2021