Epoxy Resin & Hardener Kits
Epoxy resin UK kits are for repairs, bonding and sealing jobs where standard fillers or mortar just will not hold up under load or wear.
When you need a proper 2 part epoxy resin that sets hard, sticks well and stands up to site abuse, this is the stuff to reach for. Used by builders, fixers and maintenance teams for patching concrete, anchoring, bedding components and tough repair work, these epoxy resin kits give you the resin and hardener for resin in the right ratio. If you are mixing larger batches like 5kg epoxy resin, get the prep right, mix thoroughly and pick a kit that suits the working time and the job.
What Are Epoxy Resin Kits Used For?
- Repairing broken concrete edges, worn floors and damaged steps where you need a resin epoxy mix that bonds properly and does not crumble out after a few knocks.
- Anchoring bolts, studs and threaded rod into masonry and concrete when a standard fixing is not enough and the job needs a stronger set in the hole.
- Bedding metal plates, base plates and machine components where gaps need filling and the load needs spreading across an uneven surface.
- Sealing and bonding awkward site repairs in plant rooms, workshops and service areas where oil, traffic and general wear would soon break down weaker materials.
- Handling larger patching and filling jobs with epoxy resin 5kg packs when small tubes or tubs would leave you short halfway through the mix.
Choosing the Right Epoxy Resin Kit
Match the kit to the repair size, working time and substrate. Do not just grab the biggest tub and hope for the best.
1. Small Repair or Bigger Pour
If you are sorting localised cracks, bolt holes or edge repairs, a smaller resin epoxy kit is easier to control and wastes less. If you are filling larger voids or doing repeated repairs through the day, 5kg epoxy resin makes more sense and saves remixing every half hour.
2. Working Time Matters
If the job is fiddly or spread over a wider area, pick an epoxy resin kit with enough open time to place and finish it properly. For quick anchor points or small patches, a faster set can get you moving sooner, but only if you are organised before you mix.
3. Check the Surface You Are Bonding To
Concrete, masonry and steel all take resin differently. If the base is dusty, damp or contaminated, even good 2 part epoxy resin will struggle. Clean back properly, remove loose material and make sure the kit you pick is suited to the substrate and repair type.
4. Buy the Right Mixing Setup
For bigger batches, do not try mixing by hand with a bit of scrap timber. Use proper kit like Dewalt Paddle Mixers so the resin and hardener for resin are fully blended and you do not end up with soft spots that never cure.
Who Uses These Resin Kits?
- Groundworkers and concrete repair teams use epoxy resin kits for patching damaged arrises, setting fixings and making good areas that get knocked about by traffic and plant.
- Builders and maintenance crews reach for a resin and hardener kit when they need a fast, durable repair on stairs, floors, thresholds or service yards.
- Steel erectors and fitters use 2 part epoxy resin for bedding plates, fixing studs and taking up slight irregularities before final tightening.
- Facilities and workshop teams keep resin epoxy kit on hand for repairs that need to last, especially where water, oils or regular impact would soon ruin ordinary filler.
The Basics: Understanding Epoxy Resin Kits
The main thing to understand is that this is a two part system. The resin and hardener react together to create the final set, so getting the mix and prep right matters more than anything on site.
1. Resin Plus Hardener
A 2 part epoxy resin only works properly when both parts are mixed at the correct ratio. Get that wrong and it can stay tacky, cure brittle or fail under load. That is why a proper resin and hardener kit is worth using instead of trying to guess quantities.
2. Surface Prep Decides the Result
Epoxy sticks well, but it does not bond through dust, laitance, grease or loose material. On concrete repairs and anchor jobs, clean back to sound material first or the repair will only be as good as the rubbish underneath it.
3. Pot Life Is Your Working Window
Once mixed, the clock starts. A large batch of epoxy resin 5kg can kick faster in the bucket than you expect, especially in warmer conditions. Mix what you can place in time, spread it out quickly and do not leave it sat deep in the tub.
Epoxy Resin Accessories That Make the Job Easier
A few bits alongside the resin save bad mixes, wasted material and messy repairs.
1. Mixing Paddles and Drill Mixers
This stops you ending up with unmixed resin around the edge of the tub and soft patches in the repair. For bigger batches, a proper paddle mixer is the difference between a sound set and a callback.
2. Measuring and Mixing Buckets
Clean buckets with clear markings help you keep the ratio right and stop contamination from yesterday's muck. If the mix ratio is off, the whole repair can be a write off.
3. Spatulas and Trowels
You need something proper to place and finish the mix into corners, edges and bolt pockets. Using the wrong applicator usually means air gaps, poor finish and more sanding back later.
4. Head Torches
For plant rooms, service voids and low light repairs, a good torch lets you see whether the resin has actually filled out the hole or edge. Milwaukee Head Torches are handy when both hands are busy mixing and placing.
Choose the Right Epoxy Resin Kit for the Job
Use this quick guide to match the kit size and type to the repair.
| Your Job | Epoxy Resin Kit Type | Key Features |
|---|---|---|
| Filling small cracks, holes and edge damage | Small 2 part epoxy resin kit | Easy to control, less waste, quick mixing for local repairs |
| Anchoring studs and fixings into concrete | Fast setting resin and hardener kit | Good bond strength, reliable cure, suited to fixing work |
| Bedding plates and making good uneven bases | Medium resin epoxy kit | Enough volume for void filling, decent working time, solid set |
| Larger floor patches and repeated repairs | 5kg epoxy resin | Better value on bigger jobs, fewer mixes, suited to heavier use |
| Warm weather work or detailed placement | Longer working time epoxy resin kit | More time to place and finish before the mix starts to kick |
Common Buying and Usage Mistakes
- Buying epoxy resin on price alone and ignoring pot life is a common mistake. If it goes off too fast for the repair, you will waste half the mix in the bucket and rush the finish.
- Not preparing the surface properly is where most failures start. Dust, grease and loose concrete stop the resin bonding to sound material, so the repair breaks away instead of holding.
- Mixing a 2 part epoxy resin by eye instead of to the stated ratio usually ends in soft patches or a brittle cure. Use the full kit proportions or measured quantities and mix thoroughly.
- Choosing a tiny pack for a bigger repair just to save a few quid often costs more in the end. Running out mid job leaves cold joints, colour difference and wasted time.
- Leaving a large mixed batch sat deep in the tub can make it heat up and kick far quicker than expected. Split bigger mixes down and place them straight away.
Small Kits vs 5kg Kits vs Fast Set Kits
Small Epoxy Resin Kits
Best for local repairs, bolt holes and snagging work where you only need a controlled amount. They are easier to mix accurately, but not much use if you are filling bigger voids all day.
5kg Epoxy Resin
This is the sensible choice for larger patches, repeated maintenance jobs and crews getting through material quickly. Better value and fewer remixes, but you need to stay on top of mixing and pot life.
Fast Set Kits
Useful when downtime matters and you need the repair turning around quickly. The trade off is less working time, so they are no good if the prep is not done or the placement is awkward.
Maintenance and Care
Keep Lids Sealed
Store resin and hardener tubs sealed and upright so they do not pick up contamination or leak in the van. Once dirt gets into the mix, you are asking for curing problems.
Store Out of Temperature Extremes
Do not leave kits baking in the back of the van or freezing overnight if you can help it. Extreme temperatures can affect working time, viscosity and how cleanly the mix goes off.
Clean Tools Straight Away
Once epoxy cures on paddles and trowels, it is a scraping job. Clean kit as soon as the mix is down so you are not ruining tools or contaminating the next batch.
Check Shelf Life Before Big Jobs
If a kit has sat around for ages, check the dates and condition before taking it to site. Old or poorly stored material can thicken up, separate or cure unpredictably.
Replace Damaged Mixing Gear
Bent paddles, filthy buckets and worn applicators cause more trouble than they are worth. If the gear is dragging muck into fresh mixes, replace it and save yourself a failed repair.
Why Shop for Epoxy Resin Kits at ITS?
Whether you need a small resin epoxy kit for quick repairs or epoxy resin 5kg packs for bigger patching work, we stock the range in one place. That means different sizes, job types and site-ready options, all held in our own warehouse and ready for next day delivery. If you are already sorting other site kit, it is worth checking Makita 18V LXT Twinpacks, Milwaukee Clamps and Promo - Seasonal while you are here.
Epoxy Resin Kit FAQs
What are the major disadvantages of epoxy resin?
The main drawbacks are prep, mixing and timing. It is not forgiving if the surface is dusty or damp, and if the resin and hardener are not mixed properly, it can fail. It can also go off quicker than expected in bigger batches, so you need to stay organised once it is mixed.
Is epoxy resin stronger than cement?
For bonding and many repair jobs, yes, epoxy resin will usually outperform ordinary cement because it adheres better and cures harder. That said, it is not a straight swap for every structural or bulk fill job. Use epoxy where bond strength, chemical resistance or accurate repairs matter, and use cement based products where mass and build depth are the priority.
Will 2 part epoxy resin stick to damp concrete?
Some systems are more tolerant than others, but in general you will get a far better result on clean, dry, sound concrete. If the slab is wet, dusty or contaminated, the bond is always a gamble. On site, dry and prepare it properly unless the product says otherwise.
How much area does a 5kg epoxy resin kit cover?
That depends on whether you are pouring, patching or filling voids, and how deep the repair is. A 5kg epoxy resin kit goes a fair way on thin repairs, but coverage drops fast on deep pockets and rough substrates. Work out the volume first so you are not caught short mid repair.
Can I mix a resin epoxy kit in stages?
Yes, but only if you keep the ratio exact each time. Do not just pour out rough amounts by eye. For smaller staged repairs, measured mixing is fine. For full pack systems, many lads just mix the complete kit to avoid guessing and risking a bad cure.
How do I know if the resin has been mixed properly?
You want a uniform colour and consistency with no streaks left in the mix. Scrape the sides and bottom while mixing because that is where unmixed material hides. If you can still see marbling or separation, keep going because it is not ready.
