Purus International PM 3645 34 B EnviroTack Adhesive Mat, 36x45, 30-Layer, Blue, Case of 4
Purus International PM 3645 34 B EnviroTack Adhesive Mat, 36x45, 30-Layer, Blue, Case of 4
The Purus EnviroTack PM 3645 34 B is a 36" x 45" blue cleanroom sticky mat designed to capture and contain dirt, dust, and particulate from foot traffic and wheeled equipment at controlled environment entryways. The wide 36-inch footprint provides full-width coverage for standard single and double-door entries, and the blue color offers high visual contrast for easy contamination monitoring. Each mat features 30 peel-away adhesive layers of low-density polyethylene film with a regular-tack acrylic adhesive coating and a numbered tab for single-layer removal. Made with Purus's plant-based Cardia BioHybrid material and recyclable in conventional plastic streams.
Sold in cases of 4 mats.
Specifications
| Specification | Value |
|---|---|
| SKU | PM 3645 34 B |
| Mat Size | 36" x 45" |
| Layers per Mat | 30 |
| Tack Level | Regular Tack |
| Color | Blue |
| Case Quantity | 4 mats per case |
| Film Material | Low-density polyethylene (LDPE) with Cardia BioHybrid plant-based content |
| Film Thickness | 1.8 mil / 45 μm |
| Adhesive Type | Acrylic |
| Adhesive Thickness | 0.3 mil / 8 μm |
| Peel Adhesion | 6.5 oz / 190 g/25mm ± 40 |
| Heat Resistance | 158°F / 70°C for 48 hours |
| Layer Indicator | Numbered tab shows remaining layers |
| Recyclable | Yes — conventional plastic recycling streams |
| Applications | Cleanrooms, hospitals, pharma compounding, semiconductor fabs, data centers, industrial |
Frequently Asked Questions
What is the difference between the PM 3645 34 B and the PS 3645 38 B?
Both are 36" x 45" blue mats with 30 layers, but the PM 3645 34 B comes in a case of 4 mats while the PS 3645 38 B comes in a case of 8. The 4-mat case is ideal for single-location use or lower-traffic environments; the 8-mat case offers a lower per-mat cost for facilities with multiple entry points or higher mat turnover.
Why is blue a common color for cleanroom sticky mats?
Blue mats provide high visual contrast against light-colored floors, making it easy to see when the top layer is soiled and needs to be peeled. This supports consistent contamination control protocols without guesswork. White and clear mats are also available for environments with specific aesthetic or floor-marking requirements.
How do I properly position a 36x45 mat at an entryway?
Place the mat with the 45-inch dimension running parallel to the direction of travel so personnel take at least one full step on the adhesive surface. For double-door entries or wider openings, consider using two mats side by side. Use a frame if needed to prevent shifting under heavy foot traffic or wheeled equipment.
What makes Purus EnviroTack mats more sustainable than standard sticky mats?
Purus mats incorporate Cardia BioHybrid material — a GMO-free, renewable, plant-based additive that reduces CO₂ emissions compared to conventional LDPE mats. They are also recyclable in standard plastic recycling streams, unlike most sticky mats which go to landfill after use.
