10 Products
POLYGARD
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Polygard: understand the range before choosing
Polygard is a Miswa Chemicals brand of automotive and refinishing chemicals, made in England according to its official company information. The current AutoMotoPart page is focused entirely on visibility products: screenwash concentrates for stated winter protection levels, a summer screenwash, a polycarbonate-labelled screenwash and two de-icer formats. Each temperature claim depends on the exact product and dilution.
AutoMotoPart currently lists 11 Polygard items. The largest Polygard groups are 11 screenwash and de-icer products. Polygard totals can change, so a category count is orientation rather than proof that a particular reference suits a vehicle, workplace or job. The exact Polygard listing, its current technical information and the item in front of you must agree.
What the Polygard page actually covers
| Product group in this range | Current entries | Selection focus |
|---|---|---|
| Screenwash and de-icer products | 11 | Match exact product, neat rating, measured dilution, forecast, glazing/material compatibility, container volume and current Polygard directions. |
All eleven Polygard entries are maintenance fluids for vehicle glass and visibility. Seven titles say screenwash, six contain Arctic wording, four say concentrate and two are external de-icers. Container sizes run from 500 ml to 25 litres, plus a full-pallet retail listing. The same nominal -10°C concentrate appears in several packs; the -20°C product has a separate dilution table and trade-oriented formats.
Build a reliable shortlist
Start by separating reservoir fluid from surface de-icer. Screenwash must pass through pumps, hoses and jets and remain effective at the mixed concentration. De-icer is applied directly to exterior glass. Then check the coldest likely vehicle exposure, not simply the temperature at the moment of filling.
| Check | Why it matters | Useful evidence |
|---|---|---|
| Function | Reservoir screenwash and spray-on de-icer follow different routes | Exact title, label and vehicle washer instructions |
| Winter target | Freeze protection changes with formula and water ratio | Forecast margin and product-specific dilution table |
| Existing contents | Residual summer or weak wash dilutes a winter top-up unpredictably | Known reservoir volume and previous mixture |
| Materials | Glass, polycarbonate, paint, trim, wiper rubber and washer parts may differ | Vehicle manual and exact compatibility statement |
| Pack size | 500 ml, one-, two-, five- and 25-litre packs suit different measured requirements | Reservoir/fleet volume, turnover and storage controls |
| Storage | Concentrates and bulk packs need sealed, labelled, secure chemical storage | Safety data, site assessment and original closure |
If the existing reservoir mixture is unknown and severe cold protection matters, follow the vehicle and product method for safely emptying or consuming it before making a measured fresh mix. Never estimate protection by colour, smell or the amount of concentrate poured in.
Exact -20°C concentration table
Polygard's current automotive catalogue specifies its -20°C concentrate as follows: use undiluted for -20°C protection; mix one part screenwash with one part water for -10°C; one part screenwash with five parts water for -5°C; and one part screenwash with fifteen parts water for summer use only. These are screenwash-to-water ratios, not percentages of screenwash, and apply only to the product identified by that data.
Measure both liquids in a clean chemical-compatible vessel when premixing is permitted, or add accurately in the sequence stated on the container. Account for the reservoir's total capacity and residual fluid. A five-litre or 25-litre pack does not change the ratios. Keep the neat product and mixture labelled, and never reuse a drinks container for storage or measurement.
Exact -10°C concentration table
The separate -10°C concentrate table states undiluted protection to -10°C, a 1:1 screenwash-to-water mix for -5°C, and a 1:15 mix for summer use only. The page contains 500 ml, one-, two- and five-litre packs plus a full-pallet one-litre listing. Pack format does not justify using the -20°C table or claiming protection below the -10°C product's neat rating.
Choose a mix with appropriate margin for the places and times the vehicle will stand, including colder overnight locations. Washer fluid can chill further as it sprays and airflow crosses the screen. If jets, hoses or the reservoir have already frozen, thaw them by the vehicle-approved method and inspect for leaks before operating the pump.
Summer and polycarbonate screenwash
Summer Screenwash is described in live evidence as a five-litre formula aimed at insects, traffic film and a clear finish. It should not inherit an Arctic freeze rating. In cold weather, replace or strengthen the reservoir contents using a supported winter product and measured procedure rather than assuming summer cleaning performance includes frost protection.
The five-litre Polycarbonate Screenwash title signals a material-specific option, but it does not prove compatibility with every lamp lens, plastic window, coating or washer system. Confirm the exact current Polygard data and vehicle instructions. Do not use household glass cleaner or an unverified solvent in the reservoir, because plastics, paint, seals and washer components can be affected.
Trigger and Squeasy de-icer use
The 750 ml trigger and one-litre Squeasy products apply de-icer directly to exterior glass. Polygard's official de-icer instructions say to remove loose snow, spray from the top of the windscreen downwards, let the ice melt, then clear it with wipers, scraper or cloth and wipe excess from paintwork. The live Squeasy evidence identifies -20°C protection when undiluted; do not extend that number to the trigger product without its own current label.
Use on a parked, secured vehicle with adequate ventilation. Keep spray out of eyes and away from people. Avoid flooding door seals, cameras, sensors or open cabin vents. After clearing the windscreen, free all necessary windows, mirrors, lamps and wipers, then confirm the blades move without sticking. De-icer is not a substitute for working demisters, washer jets or sound wiper rubber.
Filling, contamination and bulk storage
Clean around the reservoir cap before opening it and identify the correct filler from the vehicle handbook. Do not confuse screenwash with coolant, brake fluid, AdBlue or another tank. Use a dedicated labelled funnel and measuring vessel, avoid introducing grit, and close the cap securely. Test the washers only where overspray will not affect people, surfaces or traffic.
Store Polygard containers upright with original labels and closures, protected from damage and incompatible materials according to the safety data. Rotate stock while retaining batch identity. A 25-litre pack and pallet quantity need spill containment, handling and stock controls suited to their scale. Collect unwanted concentrate, contaminated mixtures and absorbents through the site's chemical-waste route rather than a surface drain.
From identification to a checked result
| Stage | Good practice for this range | Mistake to avoid |
|---|---|---|
| Identify | Separate -10°C, -20°C, summer, polycarbonate and de-icer products | Choosing by bottle size or colour alone |
| Calculate | Use forecast, reservoir volume, residual fluid and exact ratio | Assuming a top-up achieves the neat headline rating |
| Prepare | Read label/SDS and use clean dedicated measuring equipment | Mixing in an unlabelled drinks container |
| Fill/apply | Use the correct reservoir or exterior-glass method and avoid spills | Pouring de-icer into the washer tank by assumption |
| Verify | Check leaks, jets, blades, visibility and secure storage | Driving before all required glazing is clear |
Record the exact Polygard product and measured ratio on fleet or workshop service notes. That makes later top-ups calculable and prevents a summer mixture or -10°C concentrate being mistaken for neat -20°C protection.
Reading real Polygard references
The Polygard names below are examples from the current range and show why the complete description matters. They are not universal Polygard recommendations and should not be treated as a fitment list. Within Polygard, a shared family word can conceal a different dimension, connector, material, pack format, operating condition or installation side.
| Example listing | What to verify beyond the name |
|---|---|
| Polygard Summer Screenwash - 5 Litre | Summer-use status, cleaning task, cold-weather replacement and vehicle compatibility |
| De-Icer Trigger Spray - 750ml | Exterior-glass directions, exact temperature claim, paint cleanup and safe spraying |
| Polygard Squeasy De-icer 1L | Squeasy directions, undiluted -20°C evidence and exterior-only use |
| Polygard Arctic Screenwash Concentrate (-10C) - 1 Litre | -10°C table, bottle volume, residual fluid and target temperature |
| Polygard Arctic Screenwash Concentrate (-10C) - 500ml | -10°C table, measured quantity and secure small-pack storage |
| Polygard Arctic Screenwash Concentrate (-10C) - 2 Litre | -10°C table, reservoir volume and correct filler |
| Polygard Arctic Screen Wash - Concentrated (-20C) - 5 Litre | -20°C table, trade restriction/label and five-litre handling |
| Polygard Arctic Screen Wash - Concentrated (-20C) - 25 Litre | -20°C table, bulk handling, storage and spill plan |
Keep the full name and temperature class with every Polygard stock line. ‘Arctic concentrate’ is incomplete because both -10°C and -20°C products are present, and ‘de-icer’ does not reveal the trigger or squeeze format or its exact rating.
Common errors around Polygard products
- Using the -20°C dilution table for Polygard -10°C concentrate.
- Claiming the neat temperature rating after an unmeasured reservoir top-up.
- Treating a 1:5 ratio as one part water to five parts screenwash instead of reading the stated order.
- Assigning an Arctic freeze rating to Summer or Polycarbonate Screenwash without exact data.
- Pouring an exterior de-icer into the washer reservoir by assumption.
- Operating frozen wipers, jets or a pump before safe thawing and inspection.
- Using hot water on frozen glazing and risking thermal shock or rapid refreeze.
- Storing mixed fluid in an unlabelled bottle or disposing of concentrate to a surface drain.
Polygard questions and answers
Q: What Polygard products are listed here?
A: The range contains -10°C and -20°C screenwash concentrates, summer and polycarbonate screenwash, plus two de-icer formats.
Q: How is -20°C concentrate used for full protection?
A: Polygard's catalogue states undiluted use for the -20°C rating.
Q: What does 1:1 achieve with -20°C concentrate?
A: One part screenwash to one part water is listed for -10°C protection.
Q: What does 1:5 achieve with -20°C concentrate?
A: One part screenwash to five parts water is listed for -5°C protection.
Q: How is -10°C concentrate rated neat?
A: The separate product is listed for -10°C protection undiluted.
Q: What does 1:1 achieve with -10°C concentrate?
A: Its catalogue table states -5°C protection at one part screenwash to one part water.
Q: Can either concentrate be mixed 1:15 for winter?
A: No. Polygard lists 1:15 as summer-only use for these products.
Q: Does a top-up automatically give the bottle's neat rating?
A: No. Residual fluid changes the final concentration, so calculate the complete mixture.
Q: Is Summer Screenwash winter protected?
A: Do not infer an Arctic rating; use its exact label and switch to a supported winter mixture before freezing weather.
Q: Is Polycarbonate Screenwash suitable for every plastic lens?
A: Verify the exact Polygard data and the vehicle material instructions rather than generalising from the title.
Q: Can de-icer be poured into the washer reservoir?
A: Use it only by the application method on the exact container; the listed de-icers are presented for exterior glass.
Q: How should Polygard fluid be stored?
A: Keep it sealed, upright, labelled and secure under its safety data, away from children, food, heat and ignition.
