MC-FLEX PU 22 Construct – polyurethane sealant, 600 ml
MC-FLEX PU 22 Construct is a one-component, moisture-curing polyurethane sealant for elastic building joints. Its thixotropic consistency suits both vertical and horizontal application. This item is one grey 600 ml foil sausage. Applications Elastic sealing of indoor and outdoor construction joints. Wastewater infrastructure joints where the specified chemical and mechanical exposure is suitable. Connections to...
- Ексклузивни отстъпки за големи количества.
MC-FLEX PU 22 Construct is a one-component, moisture-curing polyurethane sealant for elastic building joints. Its thixotropic consistency suits both vertical and horizontal application. This item is one grey 600 ml foil sausage.
Applications
- Elastic sealing of indoor and outdoor construction joints.
- Wastewater infrastructure joints where the specified chemical and mechanical exposure is suitable.
- Connections to compatible mineral and other building substrates after proper preparation.
Technical details
| Product code | 92300180065608992 |
|---|---|
| Chemical base | One-component polyurethane |
| Total deformation | 25% of the original joint width |
| Indicative joint width | 10–35 mm; size according to the joint design |
| Curing rate | Approx. 2 mm/day at +23 °C and 50% relative humidity |
| Application temperature | +5 to +35 °C |
| Pack | 1 × 600 ml grey foil sausage |
Application and important conditions
Joint flanks must be sound, clean and dry. Install a suitable polyethylene backer rod to control depth and prevent three-sided adhesion.
Use Mycoflex 251 on porous absorbent substrates, especially where moisture exposure is expected. Allow more than 1 but less than 6 hours after priming; re-prime if this interval is exceeded.
Apply with a compatible gun without trapping air, then smooth the joint. Allow full curing before chemical or mechanical loading.
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Frequently asked questions
Which gun is required?
Use a gun suitable for a 600 ml foil sausage. Check that the equipment accepts this packaging format.
How many metres does one pack cover?
A 10 × 10 mm cross-section uses a theoretical 100 ml/m, giving approximately 6 m per pack before losses. This is a volume calculation, not a joint-design recommendation.
Does it remain flexible after curing?
Yes. Allowable movement must be checked against the actual joint width and movement; the sealant does not replace an engineered joint design.