Flextra
Flextra is a thermoplastic sealant from Mulco. Mulco lists it for seal joints around door and window frames, sidings, glass in window frames. Mulco gives the application temperature as 5 to 30 °C (40 to 86 °F), which the product and the surface both have to meet on the day. Cranco carries it, and which counter has it on the day changes, so ask at the counter.
Flextra is perfect for sealing outdoor joints around door and window frames, sidings and glass in window frames.
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, it is gunned between 5 and 30 °C, 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.
Call Concord 437.703.3003 Call Barrie 289.379.7988 Call Mississauga 647.797.8899
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, and Mulco prints a condition beside it: where Flextra is painted, the paint may crack if the joint moves more than the paint can stretch. Flextra is rated Class 25 under ASTM C920, so on a joint working near that figure the paint is the part that fails first.
How fast does Flextra set?
Mulco puts a 2-minute tack-free time on the product. The data sheet Cranco holds carries no tack-free or cure figure, and says the drying time depends on temperature, relative humidity and ventilation. Ask the counter for Mulco's number before you plan a cold-weather run.
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.
Specifications
| Property | Value | Source |
|---|---|---|
| Brand | Mulco | Cranco product record |
| Chemistry | thermoplastic | Cranco product record |
| Application temperature | 5 to 30 °C (40 to 86 °F) | Data sheet |
| Service temperature | -40 to 50 °C (-40 to 122 °F) | Data sheet |
| Substrates | steel, galvanized steel, metal, painted/stained wood, natural/painted/anodised aluminum, concrete, masonry, glass, fibreglass, vinyl (PVC) | Data sheet |
| Uses | seal joints around door and window frames, sidings, glass in window frames | Data sheet |
| Indoor or outdoor | exterior | Data sheet |
| Standards | ASTM C920 Type S Grade NS Class 25 Use NT; CAN/CGSB-19.13-M87 (cat 25); CGSB 19-GP-5M; 19-GP-14M; 19.17-M90; 19.24-M90 | Data sheet |
| Shelf life | 3 years (sealed cartridges, stored 10-30 °C) | Data sheet |
| Paintable | Yes | Data sheet |
| Movement capability | Not on file | No sourced row |
| Skin time | Not on file | No sourced row |
| Tack-free time | Not on file | No sourced row |
| Cure time | Not on file | No sourced row |
| Colours from the manufacturer | Not on file | No sourced row |
| Package sizes | Not on file | No sourced row |
| VOC | Not on file | No sourced row |
Features from Mulco
- 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.
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.
Concord
255 Spinnaker Way, Unit #2, Concord, ON L4K 4J1
- Mon–Fri 7:00 am–5:00 pm
- Sat 7:00 am–12:00 pm
- Sun closed
Call to confirm stock
Barrie
556 Bryne Drive, Unit #1, Barrie, ON L4N 9P6
- Mon–Fri 7:00 am–4:00 pm
- Sat–Sun closed
Call to confirm stock
Mississauga
1122 Lorimar Drive, Unit B, Mississauga, ON L5S 1R8
- Mon–Fri 7:00 am–4:00 pm
- Sat–Sun closed
Call to confirm stock
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