Complete Guide to PU Flooring in Bangladesh: Costs, Specs & Installation Checklist

PU flooring in Bangladesh is an increasingly common choice for factories, commercial spaces, and high-traffic public areas because of its durability, chemical resistance, and seamless finish. This guide explains types, costs, specification steps, and practical installation considerations that matter for local projects.

Detected intent: Informational

PU flooring in Bangladesh: what it is and why it’s used

Definition and main types

Polyurethane (PU) flooring is a category of seamless floor coatings and screeds made from polyurethane resins. Common forms include polyurethane screeds (thick, trowel-applied) and polyurethane coatings (thin, roller-applied). Related systems include epoxy resin floors and epoxy-polyurethane hybrids. Terms to know: elastomeric, solvent-free, decorative sealer, slip resistance, and chemical resistance.

When to choose polyurethane vs alternatives

Choose polyurethane for areas needing flexibility, UV stability, or where solvents must be avoided. Epoxy can be cheaper and harder, but it cracks under movement and discolors in sunlight. For industrial PU floor coating projects, consider load, thermal cycling, chemical exposure, and hygiene requirements.

How to specify PU floors (SELECT checklist)

Use a simple, named framework to avoid missed requirements: the SELECT checklist helps align project needs with product selection and installation steps.

• Substrate: Concrete condition, moisture content, tensile strength, and flatness tolerances.
• Environment: Temperature range, humidity, UV exposure, and chemical atmosphere.
• Load: Static loads, dynamic/impact loads, wheel traffic, and point loads.
• Execution: Surface preparation method (shotblast/grind), primer selection, and curing controls.
• Compliance & Testing: Slip resistance, hardness, and local standards like certification from the Bangladesh Standards and Testing Institution (BSTI).

Specification example (short scenario)

Scenario: A garment finishing area in Dhaka needs a non-porous floor that resists dye spills, is easy to clean, and sustains heavy pallet truck traffic. Using the SELECT checklist leads to: moisture test, shotblast to CSP 3, a moisture-tolerant primer, a 6–8 mm PU screed with anti-slip aggregate, and a 2 mm wear layer in high-traffic aisles.

Costs, lead times, and procurement considerations

Cost factors

Costs vary with system type (coating vs screed), thickness, surface prep, and local labour. Expect higher initial cost than painted or epoxy finishes but lower lifecycle cost where chemical and impact resistance reduces repairs. Budget for substrate repair, moisture mitigation, and sealant joints.

Lead times and seasonal notes

Allow extra time during monsoon months for moisture-sensitive products. Curing time depends on ambient temperature and humidity—hotter conditions speed curing, but too rapid cure can cause defects.

Practical tips for successful PU flooring projects

• Test substrate moisture and tensile strength before specifying—high moisture can cause delamination.
• Insist on mechanical surface prep (shotblast or diamond grind) rather than chemical etching for long-term adhesion.
• Verify mix ratios and on-site mixing procedures to avoid weak or overly brittle batches.
• Schedule work during stable temperature periods and control ventilation to manage curing fumes and VOCs where applicable.

Common mistakes and trade-offs

Common mistakes

• Skipping proper substrate preparation: leads to early failure despite high-quality materials.
• Choosing the cheapest product without checking datasheet limits for load, chemical exposure, or UV stability.
• Neglecting expansion joints and transition details, which causes cracking or delamination at interfaces.

Trade-offs to consider

Rigid screeds offer excellent wear resistance but handle thermal movement poorly. Flexible urethane systems tolerate movement but may require thicker layers or aggregate for heavy loads. Balancing initial cost, expected lifecycle, and maintenance access is essential.

Core cluster questions for internal linking

• How to prepare concrete subfloors for PU flooring?
• What is the lifespan of polyurethane floors in industrial settings?
• How does PU flooring compare to epoxy in factories?
• What are best practices for cleaning and maintaining PU floors?
• Which tests verify PU flooring adhesion and chemical resistance?

Standards, testing, and compliance

Follow manufacturer datasheets and test methods for slip resistance, abrasion (e.g., Taber), and chemical resistance. Local approvals or certifications from standards bodies such as BSTI should be requested for regulated facilities and to ensure product traceability.

FAQ

What is the typical lifespan of PU flooring in Bangladesh?

PU flooring in Bangladesh typically lasts 8–20 years depending on system type, traffic intensity, chemical exposure, and maintenance. Proper installation and substrate prep are key to reaching the upper range.

Can PU flooring be installed over old concrete?

Yes, if the concrete is structurally sound. Surface repair, crack treatment, shotblasting, and moisture tests are mandatory steps before installation.

How long does PU flooring take to cure before light use?

Light foot traffic may be permitted after 24–48 hours in ideal conditions; full chemical and heavy wheeled traffic often requires 7 days or more. Always follow the specific product cure schedule.

Are PU floors slip-resistant and food-safe?

Slip resistance depends on surface texture and aggregate. Food-safe ratings depend on the product formulation and certification—select products with relevant hygienic or food-contact approvals for food processing areas.

What maintenance is required for industrial PU floor coating?

Regular cleaning with neutral pH detergents, prompt spill cleanup, periodic inspections for wear, and reapplication of top wear layers in high-wear zones prolong service life.