Deluxe White Felt Underlay 400gsm 4mm - 2m x 25m

Deluxe White Felt Underlay 400gsm (4mm) for Swimming Pool Liners

Premium Swimming Pool Liner Protection Underlay

The Deluxe White Felt Underlay 400gsm (4mm) is a high-quality swimming pool liner underlay designed to protect vinyl liners and improve comfort. Installed between the pool base or walls and the liner, this heavy-duty pool felt underlay helps prevent punctures, smooths imperfections, and extends liner lifespan.

Ideal for both inground and above-ground swimming pools, this white felt pool underlay provides a professional finish and added cushioning underfoot.

Why Choose Our Deluxe Pool Liner Underlay?

This 400gsm swimming pool felt underlay offers increased density and protection compared to standard pool pads, making it an excellent choice for premium installations and long-term liner performance.

Key Features

• 400gsm heavy-duty pool liner felt for superior durability

• 4mm thick swimming pool underlay for enhanced cushioning

• White felt liner underlay for a clean, professional appearance

• Helps protect vinyl liners from abrasion and punctures

• Smooths minor surface imperfections in pool floors and walls

• Suitable for pool floors and vertical walls

Suitable Applications

• Inground swimming pool liner installations

• Above-ground swimming pools

• Concrete, screeded, and steel wall pool structures

• New pool builds and liner replacement projects

Product Specifications

• Product Type: Swimming pool liner felt underlay

• Material: Synthetic liner-safe felt

• Weight: 400gsm

• Thickness: Approx. 4mm

• Colour: White

• Use: Pool floor and wall protection

Benefits of Using Pool Felt Underlay

• Extends the life of vinyl swimming pool liners

• Improves comfort underfoot

• Reduces risk of liner damage from rough surfaces

• Enhances overall liner appearance and finish

Installation Guidance

Install the pool liner felt underlay on a clean, dry, and smooth surface. Secure using suitable adhesive or tape, ensuring seams are tightly butted and not overlapped. Trim neatly around fittings and install the vinyl liner immediately after fitting the underlay.