Life Sciences – Diagnostics – Lateral Flow Assays

Porex TruFlowTM Absorbent Pads

Optimized for Consistency and Manufacturing Ease

Porex TruFlowTM absorbent pads have a consistent wicking volume and rate to minimize backflow of excess reagents

The absorbent pad absorbs all of the volume of the assay. Also known as a wick pad, Porex TruFlowTM absorbent pads for lateral flow have high absorption capacities while maintaining the tensile strength needed for reel-to-reel manufacturing. Porex TruFlow lateral flow assay pads do not include any glass fiber or cellulose, which ensures increased strength and durability for manufacturing. Our synthetic polyolefin-based fiber is uniform and hydrophilic for consistent absorption.

This is an image of a lateral flow assay. It contains an absorbent pad that is used to absorb a sample.

Porex TruFlow™

See the latest on how Porex is advancing diagnostics with superior consistency and ease of manufacturing.

Options for customizing absorbent pads for lateral flow assays

Key Features & Benefits

  • Optimize reproducibility of your assay with improved material consistency
  • Reduce cost during manufacturing with robust material
  • Non-Swelling Media
  • High absorptivity to minimize backflow of excess reagents
  • Reduced delamination when wet

Product Options

ID Thickness
Basis Weight
Capillary Rise
A205 1.7 0.09 152.47 3 134.85 Polyolefin

Material Options

  • Sheets
  • Rolls – custom widths available

What is the absorbent pad in a lateral flow assay?

The lateral flow absorbent pad is a vital component for diagnostics. It’s primary purpose is to absorb and transport the liquid sample along the test strip, allowing it to interact with different reagents and produce a visible result. The absorbent pad plays a crucial role in regulating the flow rate of the sample, ensuring that it moves at an optimal pace through the test strip. This pace enables accurate reactions between the sample and the embedded components, thus contributing to the overall sensitivity and specificity of the assay. The efficient functioning of the lateral flow sample pad is crucial in determining the reliability of the test results.

What material is used for a lateral flow absorbent pad?

Lateral flow absorbent pads are made from a range of materials such as cotton, cellulose, glass fibers, or porous polymers. When considering materials for a lateral flow sample pad, Porex TruFlow stands out as a superior option that offers exceptional performance and easy manufacturing. It has been meticulously engineered to surpass traditional glass fiber.

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