Lab Plastic Spatulas & Utensils

A spoon-end spatula scoops and transfers loose powders and granules. A flat-end spatula scrapes adherent solids and mixes powders. Tweezers and forceps pick up and position flat or delicate objects. A stirring rod mixes liquids. Using the wrong tool leads to sample loss, contamination, or damage to delicate specimens.

PP spatulas and stirring rods are metal-free and suitable for most chemical applications including work with transition metal ion solutions where metal contamination would interfere with results. Avoid PP with concentrated organic solvents that dissolve it. ABS tweezers are rigid and precise. Nylon utensils add higher temperature resistance for near-hot-plate use.

Short-handled small spatulas are ideal for weighing boats and small reagent vials. Longer-handled spatulas reach the bottom of tall reagent bottles. Fine-tip tweezers suit small specimens and slides. Broad-tip tweezers provide a better grip on heavier objects. Match the tool size to the work to avoid awkward angles that cause spillage.

For microbiology and cell culture work, plastic utensils should be sterile before use. PP spatulas and tweezers can be autoclaved or purchased pre-sterilised. Single-use individually wrapped sterile spatulas are available for applications where cross-contamination between samples is a serious concern.

Use a plastic spatula when working with reagents where metal ion contamination would affect the result, such as transition metal ion solutions, enzyme assays, or biological samples where trace metal contamination is significant. Plastic spatulas are also preferred when the chemical being handled is corrosive to metal, such as hydrofluoric acid or aggressive oxidising agents that would corrode or stain a metal spatula.

Polypropylene tweezers and forceps can be autoclaved at 121 degrees Celsius. ABS plastic tweezers are generally not autoclavable as ABS deforms at autoclave temperatures. Check the material specification before autoclaving. Silicone-coated forceps and nylon tweezers are also typically autoclavable. For repeated sterilisation in microbiology and cell culture, use PP or silicone-tipped tweezers explicitly rated for autoclave use.

In laboratory usage, tweezers and forceps both refer to a two-arm pincer tool for gripping objects. Forceps is the more formal term used in biology and medicine, and typically refers to heavier, spring-loaded tools for gripping tissue, organs, and larger specimens. Tweezers are the informal term, often used for lighter, finer-tip instruments suited to slides, insects, and delicate specimens. In practice, the terms are used interchangeably in the school and general lab setting.

PP stirring rods resist most dilute acids, bases, and aqueous solutions at room temperature. They are not suitable for concentrated aromatic solvents (toluene, xylene), chlorinated solvents (chloroform, DCM), or ketones at high concentrations. For these chemicals, use PTFE or glass stirring rods. PP rods are safe to use in the vast majority of school and university chemistry experiments.

Rinse immediately after use to prevent reagents from drying onto the surface. Wash with a soft cloth or brush and laboratory glassware detergent, then rinse three times with tap water and once with distilled water. For biological contamination, soak in 1% bleach solution for 30 minutes before washing. Do not use abrasive scrubbers that will scratch the surface. Air-dry inverted or place in a drying oven below 60 degrees Celsius for PP.