SKU: 18436996443

Vulkem 191 QD Primer

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Description

Vulkem 191 QD PrimerTremco Vulkem 191 QD Primer Quick Dry, Single Component Urethane Primer for Traffic Deck Systems Brand: Tremco Tremco Vulkem 191 QD is a quick drying, single component urethane primer for use under Vulkem traffic deck and waterproofing membrane systems. Applied to properly prepared concrete and metal substrates, it is designed to improve adhesion of the Vulkem base coat and help reduce outgassing that can cause pinholes or adhesion issues in the

Tremco Vulkem® 191 QD Primer

Quick-Dry, Single-Component Urethane Primer for Traffic Deck Systems | Brand: Tremco

Tremco Vulkem® 191 QD is a quick-drying, single-component urethane primer for use under Vulkem traffic deck and waterproofing membrane systems. Applied to properly prepared concrete and metal substrates, it is designed to improve adhesion of the Vulkem base coat and help reduce outgassing that can cause pinholes or adhesion issues in the membrane. Confirm suitability, primer requirements, coverage, and recoat windows against the current Tremco TDS, SDS, and system specification before use.

Professional system note: Vulkem 191 QD must be used as part of an approved Tremco traffic deck or waterproofing system. Do not apply the Vulkem base coat before the primer has fully dried to the specified tack-free state. Confirm primer requirements and recoat windows with the current Tremco system specification.

Product Description

Vulkem 191 QD is formulated for accelerated dry times compared to standard Vulkem primers, allowing the Vulkem base coat to be applied sooner and helping to reduce overall system installation time; confirm dry times against the current TDS as they vary with temperature and humidity. Its single-component formulation requires no mixing. The QD (Quick Dry) designation indicates an accelerated dry time compared to standard Vulkem primers; confirm performance against the TDS for your specific site conditions.

The primer is designed to penetrate and seal the concrete surface, improving the bonding interface between the substrate and the Vulkem urethane membrane. On metal substrates, it provides a compatible bonding interface for the Vulkem system. Proper substrate preparation and primer application are critical to the long-term performance of the complete traffic deck system.

Key Characteristics

  • Quick-dry formulation — accelerated tack-free time compared to standard primers; confirm dry times against the TDS as they vary with temperature and humidity.
  • Single-component — no mixing required; apply directly from the container.
  • Designed to improve adhesion — formulated to improve the bond between concrete or metal substrate and the Vulkem urethane membrane; final adhesion depends on substrate condition, preparation, and application method.
  • Designed to reduce outgassing — formulated to help reduce outgassing and pinholing in the applied membrane; confirm requirements against the TDS.
  • System-compatible — designed for use with Vulkem 350NF, 360NF, and other approved Tremco traffic deck and waterproofing systems; confirm system compatibility against the current Tremco specification.
  • Concrete and metal substrates — confirm substrate preparation requirements against the TDS before application.

Typical Applications

  • Primer for Vulkem 350NF / 360NF traffic deck systems on concrete
  • Primer for Vulkem waterproofing membrane systems on concrete and metal
  • Parkade and parking structure deck primer coat
  • Podium and pedestrian deck substrate preparation
  • Metal substrate priming for Vulkem system compatibility

Performance Highlights

Chemistry
Single-component urethane
Dry Time
Quick-dry (QD) — confirm against TDS
Substrates
Concrete and metal — confirm prep requirements against TDS
Application
Roller or brush
System Role
Primer / adhesion promoter
Compatible Systems
Vulkem 350NF, 360NF, and approved Tremco systems

Surface Preparation

Concrete must be mechanically profiled (shot-blasted or ground), clean, dry, and free of laitance, oil, grease, curing compounds, and incompatible coatings. Metal must be clean, dry, and free of rust, mill scale, and oil. Conduct moisture testing on concrete before application. Refer to the current Tremco system specification for substrate-specific preparation requirements and acceptable moisture levels.

Application Instructions

  1. Substrate preparation: Prepare the substrate as described above. Confirm moisture levels are within acceptable limits per the TDS.
  2. Application: Apply Vulkem 191 QD by roller or brush at the coverage rate specified in the TDS. Ensure uniform, thin coverage across the entire substrate area.
  3. Dry time: Allow the primer to dry to the specified tack-free state before applying the Vulkem base coat. Do not apply the base coat before the primer is fully dry.
  4. Recoat window: Apply the Vulkem base coat within the recoat window specified in the TDS. Do not exceed the maximum recoat time without re-priming.

Limitations

  • Must be used as part of an approved Tremco system — not a standalone waterproofing product.
  • Do not apply to damp, contaminated, or unsound substrates.
  • Do not apply below minimum temperature or when condensation or rain is expected before cure; confirm temperature requirements against the TDS.
  • Do not apply the base coat before the primer has reached the specified tack-free state.
  • Do not exceed the maximum recoat window without re-priming.

Storage & Shelf Life

Store in original, unopened containers in a cool, dry, ventilated area away from direct sunlight, heat, and moisture. Confirm shelf life and storage conditions against the product label and current SDS.

Health & Safety

Read the current Safety Data Sheet (SDS) before use. Contains isocyanate and solvent components — wear gloves, eye protection, and ensure adequate ventilation. Refer to the SDS for full hazard classification and first-aid measures.

Frequently Asked Questions

What is the difference between Vulkem 191 QD and standard Vulkem primers?

The QD designation indicates a quick-dry formulation with an accelerated tack-free time compared to standard Vulkem primers. Confirm dry times against the current TDS for your specific site conditions.

Is Vulkem 191 QD required for all Vulkem systems?

Primer requirements vary by system and substrate. Refer to the current Tremco system specification for your specific application to confirm whether Vulkem 191 QD or another primer is required. Contact Canopus Supply for guidance.

Can it be used on metal substrates?

Vulkem 191 QD is designed for use on metal substrates as part of an approved Tremco system. Ensure the metal is clean, dry, and free of rust, mill scale, and oil before application. Confirm suitability against the current TDS.

What is the recoat window after applying the primer?

The recoat window is temperature and humidity dependent. Refer to the current Tremco TDS for specific tack-free times and maximum recoat windows. Do not exceed the maximum recoat time without re-priming.

Purchasing Note: All sales are intended for professional and trade purchasers. Before ordering, confirm product suitability, quantity, system compatibility, substrate condition, pickup timing and delivery requirements. Product use and installation are the responsibility of the purchaser and installer.

Canopus Supply Inc. — Authorized Tremco Distributor, Metro Vancouver & BC

Technical information is provided for professional reference only. Product selection, substrate preparation, installation method, coverage, cure time, system compatibility and final performance remain the responsibility of the purchaser, installer, project specifier and/or manufacturer documentation. Always confirm suitability against the current TDS, SDS, project specification and site conditions before use.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 18436996443

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4.6 ★★★★★
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User9188
Charlottesville, US
★★★★★ 5
Reliable and Easy to Use Cold Brew Coffee Maker
Color: Black, Size: 40 oz, Color: Black, Size: 40 oz
This cold brew maker is easy to use and does the job well. I get smooth coffee every time without bitterness. The size is good and fits in my fridge without taking much space. The filter works well and keeps most of the grounds out of the coffee. Cleaning is simple and does not take much time. The build feels solid for daily use. I like that I can control how strong the coffee is by changing the water and coffee ratio. One thing to know is that you need coarse ground coffee for best results. (I use Bizzy coffee) Letting it steep longer makes the flavor better. It is not insulated, so you should keep it in the fridge while brewing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
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Verified Purchase
Mackenna Gilhooly
Port Orchard, US
★★★★★ 5
Best cold brew brewer out there
Color: Black, Size: 40 oz
One of my favorite purchases in a long time. This coffee maker is just a perfect size and it can be put in the fridge in any direction, on its side, on its top, whatever. It does not leak and it's very easy to clean. Just a superior product all the way around.
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Reviewed in the United States on March 25, 2026
S
Verified Purchase
Scott Taylor
Houston, US
★★★★★ 5
Great cold brew maker!
So far this has been a big improvement from a different brand cold brew maker I had. It is simple and easy to used doesn’t leak. The coffee comes out tasting great! It has a smart design that works well. It’s a great deal for how well it works. It is big enough to last all week but not take up to much space in the fridge.
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Reviewed in the United States on October 27, 2025
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Verified Purchase
Finn
San Leandro, US
★★★★★ 1
Air gets trapped in the filter so it won’t fully steep
Color: Black, Size: 40 oz
Filter doesn’t let air out. It’s weird about all these positive reviews bc I tried cold brewing tea two times overnight but the filter holes are so small that basically it traps a large air bubble inside with the tea leaves. The water was barely steeped. It was weird enough to the point where I thought there must be a clear film on the filter that I hadn’t removed. When I loosen the lid all do the air rushes out and it fills w water, but when you tighten the lid any air inside with your grounds/leaves is trapped and prevents steeping. I kept thinking it was me based on all of these positive reviews but I could not prevent the massive about of air from getting trapped in the filter. If they made the holes bigger (not too big to let grounds out but currently you could mistake it for plastic film) then it would’ve been perfect. Nice size and about what I’d drink in a day or so. Change the filter hole size to let air flow out and I’ll buy it back!
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Reviewed in the United States on May 16, 2026
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Verified Purchase
Timothy Mousseau
Whiting, US
★★★★★ 5
Neat gadget
Color: Gold
Neat little gadget. Works great, easy to use and has a light indicator for temperature range. Keeps a cup of liquid hot right to the bottom.
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Reviewed in the United States on May 29, 2026

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