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Sika Duoflex 5050 Primer
Sika Duoflex Primer-5050 is a two-component, low viscosity, adhesion-promoting epoxy primer for Sika Duoflex polysulphide sealants.
- Two-Component 1:1 Ratio
- Fast Drying Time
- Maximizes Adhesion and Durability
$190.41
Availability: In stock ( 12 Available )
SKU
18955
Sika Duoflex 5050 Primer – Two-Component Epoxy Adhesion Primer
Sika Duoflex 5050 Primer is a two-component, low-viscosity epoxy primer formulated to enhance adhesion between Sika Duoflex sealants and concrete or metal substrates. Applied with a brush, this primer dries quickly to reduce project delays. It's VOC-compliant and ideal for indoor or outdoor use, offering reliable performance in demanding environments. With a simple 1:1 mix ratio and fast drying time, it's built for efficiency in field applications. Compatible only with Sika Duoflex NS and SL sealants.
Key Features:
- Two-component epoxy primer with 1:1 mix ratio
- Low viscosity for easy brush application
- Fast drying – ready for sealant in as little as 2 hours
- Maximizes adhesion on concrete and steel
- Low VOC formula (50 g/L)
- Minimizes downtime and increases installation speed
- Recommended for Sika Duoflex NS and SL systems only
Technical Specifications:
| Property | Value |
|---|---|
| Mix Ratio | 1:1 by volume |
| VOC Content | 50 g/L |
| Solid Content | 65% by volume |
| Pot Life | 3 hours |
| Coverage on Concrete | 700–800 linear ft/unit at 3–5 mils |
| Coverage on Steel | 1100–1300 linear ft/unit at 2–3 mils |
| Wait Time Before Sealing (Concrete) | Minimum 2 hours, Maximum 36 hours |
| Wait Time Before Sealing (Steel) | Minimum 4 hours, Maximum 36 hours |
Frequently Asked Questions:
What substrates does Duoflex 5050 Primer bond to?
It's made for concrete and steel. Surface prep must meet CSP 3–5 for concrete and SP-5 or SP-10 standards for steel.
How long can I wait before applying the sealant?
Apply Sika Duoflex NS/SL within 36 hours of priming. On concrete, wait at least 2 hours; on steel, wait 4 hours before sealing.
Can I use this primer with other sealants?
No. It's only approved for use with Sika Duoflex NS and SL. Using it with other systems may affect adhesion or performance.
What's the minimum installation temperature?
Apply when temperatures are 40°F or higher and at least 5°F above dew point. Substrate must be dry with less than 4% moisture.
| Brand | Sika |
|---|---|
| Manufacturer | Sika |
