ISL

We are Porosity Sealing Experts utilising Vacuum Pressure Impregnation processes to seal porous materials. Get in touch - impregnation.co.uk/contact/ #casting #porosity #sealing #porosityselaing #impreg #resin #resinsealing #castingimpregnation #uk #ukmfg #ukmanufacturing

At Impregnation Services Ltd, we provide pressure testing solutions for a wide range of components and applications, helping manufacturers confirm that their parts meet the required standards and specifications.

Porosity doesn't have to mean wasted components. Recover, seal, and strengthen your castings with proven vacuum impregnation solutions.

Small pores can lead to big problems. Porosity sealing penetrates and seals microscopic pathways in castings, preventing leaks and enhancing the integrity of your components without altering their dimensions.

We offer reliable pressure testing for components and castings up to 2 tonnes. Our capabilities include bubble, hydro, resin, air pressure, and vacuum leak testing to identify leaks, verify integrity, and support porosity sealing processes.

Did you know? Porosity sealing can recover castings that would otherwise be scrapped, sealing microscopic leak paths without changing the part’s dimensions or performance. A smarter solution for reducing waste and improving reliability.

Porosity is a common issue in cast metal parts and it’s not always visible on the surface. Even with modern casting methods, small voids from shrinkage or trapped gas can lead to leaks once parts are machined or put under pressure.

Our Dot Peen marking service provides fast, reliable and permanent identification for your parts. Using a tungsten carbide stylus, a series of precise dots are driven into the surface to create clear, durable markings that won’t fade or wear away.

Porosity sealing eliminates micro-voids in castings, preventing fluid and gas leaks while maintaining the component’s original dimensions and strength.

Porous castings? We fix that. Our vacuum impregnation process seals leaks, strengthens components and extends part life—helping manufacturers avoid waste and downtime.

Pressure testing is a critical quality control process for components and castings — helping identify leak paths and verify integrity before or after porosity sealing.

Microscopic pores in metal castings can lead to leaks and failures. We fix it with our porosity sealing, improving reliability and extending component life.

As the year comes to a close, we’d like to thank our customers, partners, and the entire ISL team for another successful year. We wish you a very Merry Christmas and a happy, healthy New Year. 🎄✨ Thank you for your continued support — we look forward to what 2026 brings.

At ISL, castings undergo porosity sealing to enhance durability, prevent leaks, and meet demanding industry standards. impregnation.co.uk/what-is-p…

Our Dot Peen Marking delivers deep, sharp results using a tungsten carbide stylus for high-contrast text, logos and Data Matrix codes. #uk #impregnationservices

Ensure zero leaks and maximum integrity at Impregnation Services we pressure-test castings and components up to 2 tonnes in-house. #PressureTesting #QualityAssurance #ukmfg

Every sealed pore saves a part! 💧 Impregnation eliminates porosity-related leaks, reduces material waste, and extends component life. #SustainableEngineering #ImpregnationServices

We take pride in building strong, lasting relationships with our customers. Hearing feedback like this reminds us why we do what we do. 💪 #CustomerFeedback #Impreg #QualityService #IndustrialExcellence

Full shop floor, busy week! 🔧 Porosity sealing in full swing as our impregnation services keep castings leak-free and production on track. #ImpregnationServices #PorositySealing #Engineering #MadeInUK

Did you know? Porosity describes how much air and moisture your material can hold — and untreated porosity is what lets stains, water, and damage seep in. Protect your surfaces with the right impregnation to maintain strength and appearance

From low-pressure bubble testing to high-pressure hydro and resin-based methods, our facilities cover the full spectrum of pressure testing. We guarantee accurate, traceable outcomes so your products meet the toughest standards.