FREE UK Delivery Over £99

Spread The Cost - Pay in 3

Best Price Guarantee

Fuss Free Returns

Silver Mylar Sheeting 5m x 1.4m (35 Micron)

In stock
SKU: 7492
Regular price £9.99
Loading locations...

Reflective Grow Room Film

Silver Mylar Sheeting 5m x 1.4m is a simple, cost-effective way to improve light reflection inside grow rooms, propagation areas, cupboards and DIY indoor growing spaces.

When light hits dark, dull or uneven surfaces, a lot of usable output can be wasted. Adding reflective sheeting helps redirect more of that light back towards your plants, improving coverage and helping you make better use of your grow light.

This 35 micron silver Mylar film is ideal for lining walls, creating reflective panels, covering awkward areas or replacing worn reflective surfaces. It is lightweight, easy to cut and simple to install using suitable tape, staples, battens or clips.

With a 5m length and 1.4m width, each roll gives you around 7m² of reflective coverage, making it a practical choice for small grow rooms, compact setups and budget-friendly grow space upgrades.

Key Benefits

  • Improves light reflection; helps redirect wasted light back into the growing area;
  • Great for grow rooms; ideal for lining walls, cupboards, propagation areas and DIY grow spaces;
  • Budget-friendly upgrade; a simple way to improve your setup without replacing major equipment;
  • 5m x 1.4m roll; provides around 7m² of reflective coverage;
  • 35 micron thickness; lightweight, flexible and easy to work with;
  • Easy to cut to size; trim sections to fit walls, panels, shelves or awkward spaces;
  • Helps reduce wasted light; useful where bare walls, dark surfaces or damaged lining are absorbing light;
  • Useful for propagation areas; helps improve light distribution around seedlings, cuttings and young plants;
  • Quick to install; can be fixed in place with suitable tape, staples, battens or clips;
  • Ideal for DIY setups; perfect for growers building or improving a custom indoor growing area.

Why You Need It

Good lighting is one of the most important parts of indoor growing, but the surfaces around your plants matter too.

If your grow space has dark walls, exposed surfaces or old reflective lining, some of your light is being absorbed instead of being used by your plants. Silver Mylar Sheeting helps improve the efficiency of your space by reflecting light back into the growing area.

It is especially useful if you are setting up a grow room from scratch, converting a cupboard, improving a propagation area or tidying up a space where the existing reflective material has become damaged, dirty or dull.

Perfect for Grow Rooms, Cupboards & DIY Setups

Silver Mylar Sheeting is a practical choice for growers who want more control over their light environment without spending a fortune.

Use it to line grow room walls, cover panels, brighten up corners or create a more reflective surface around your plants. It is also useful for temporary growing spaces, propagation shelves and small indoor gardens where every bit of light matters.

Because it is lightweight and flexible, it can be shaped around awkward areas more easily than rigid boards or panels.

How Silver Mylar Sheeting Helps Your Plants

Reflective sheeting does not add more light by itself, but it helps you make better use of the light you already have.

By reflecting light back towards the canopy, Mylar can help improve coverage around the sides of your plants and reduce light lost to surrounding walls or surfaces.

This is especially useful in compact spaces where plants sit close to walls, or where a single light needs to cover the area as evenly as possible.

How to Use Silver Mylar Sheeting

  1. Measure the area you want to cover before cutting the sheeting.
  2. Cut the Mylar to size using scissors or a sharp blade.
  3. Fix it to the wall, panel or frame using suitable tape, staples, clips or battens.
  4. Keep the surface as flat and smooth as possible to improve reflection.
  5. Avoid leaving loose sections that can flap into fans, plants or hot equipment.
  6. Wipe down carefully when needed to keep the reflective surface clean.
  7. Replace sections if they become badly creased, torn or dirty.

Installation Tips

  • Keep it smooth; heavy creases can reduce the quality of light reflection;
  • Use secure fixings; make sure the sheeting cannot drop, tear loose or move into fans;
  • Do not block airflow; leave intake and extraction paths clear;
  • Keep away from hot surfaces; do not place directly against lamps, heaters or heat-producing equipment;
  • Clean carefully; wipe with a soft cloth rather than scratching the reflective face.

Silver Mylar vs White Sheeting

Silver Mylar is highly reflective and works well when you want to bounce light back into the grow space.

White sheeting gives a softer, more diffused reflection and is often used when growers want a cleaner, less mirror-like finish. Silver Mylar is a strong option when your main priority is maximising reflectivity on a budget.

If you want a simple reflective lining for a small room, cupboard or DIY setup, this Silver Mylar Sheeting is a quick and affordable choice.

Who Should Use Silver Mylar Sheeting?

  • Beginner growers; ideal for improving a simple indoor setup;
  • DIY grow room builders; useful for lining custom spaces and converted areas;
  • Propagation growers; helps improve light reflection around young plants;
  • Growers replacing damaged lining; great for patching or refreshing tired reflective surfaces;
  • Budget-conscious growers; a low-cost way to reduce wasted light;
  • Small-space growers; useful in cupboards, shelves and compact grow areas.

Tech Specs

  • Product: Silver Mylar Sheeting
  • Product type: Reflective grow room film
  • Dimensions: 5m x 1.4m
  • Coverage: Approximately 7m²
  • Thickness: 35 micron
  • Colour: Silver
  • Use: Light reflection and grow room lining
  • Suitable for: Grow rooms, cupboards, propagation areas, DIY grow spaces and indoor gardens
  • Installation: Cut to size and secure with suitable tape, clips, staples or battens
  • Best for: Improving light reflection in budget and custom grow setups

Top Tip

For best results, fit Silver Mylar Sheeting as smoothly as possible and keep it clean. A flat, tidy reflective surface will make better use of your grow light than loose, creased or dusty sheeting.

Fuss Free Returns

Any issues we'll help you out.

Payments shown as GWHP

Discreet and secure

Lightning Fast Delivery

Get growing faster

Plain Packaged Deliveries

Always unbranded boxes

Questions & Answers

Have a Question?

Be the first to ask a question about this.

Ask a Question
local grow shop growell hydroponics

YOUR LOCAL HYDROPONICS EXPERT

Visit Your Local GroWell Shop

We won't be beaten on price or advice.

Covering the Midlands, Bristol and London, whichever of our shops you visit, we can guarantee you'll get the best price and unbeatable advice from our expert staff.

Find Your Local GroWell