Sumitomo Refleshine solar film and 3M Prestige 70 are premium options for customers who want heat and UV protection without heavily darkening their glass.
The main difference is appearance and technology: Refleshine uses heat-reflecting and insulating film designs, while 3M Prestige 70 uses a metal-free multilayer optical film with lower visible reflectivity.
This comparison focuses on Sumitomo Refleshine TW32 and TW36A because they are the closest bright-film alternatives to 3M Prestige 70.
The right choice depends on your glass, sunlight direction, brightness preference, signal sensitivity and budget.
TW32 and TW36A TSER figures are estimates converted from their published shading coefficients. Actual performance varies with glass type, window direction, installation conditions and testing standards.
In conclusion, 3M Prestige 70 (3M PR 70) is the better choice for maximum brightness, clarity and a natural glass appearance.
Refleshine models offer different levels of shade and reflectivity, with SEF25 being much darker and therefore not a direct alternative to PR70.
Choose 3M Prestige 70 for the clearest, least reflective finish and lower
signal concern.
Choose Refleshine TW32 for maximum daylight, or TW36A for
stronger heat control with a more reflective appearance.
Sumitomo Refleshine is a Japanese window film range made by Sumitomo Riko. TW32 and TW36A are described as transparent, reflecting and insulating films that reduce solar heat while maintaining daylight.
TW32 allows more light into the room and is the better Refleshine choice for customers who dislike darker tint.
TW36A reduces more solar transmission but has higher visible reflectivity.
Sumitomo Refleshine models uses metal layers, so signal sensitivity and large-area installation should be checked before confirmation.
3M Prestige 70, or PR70, is a metal-free, spectrally selective film designed for high clarity and low reflectivity.
On clear single-pane glass, 3M publishes 70% visible light transmission, 50% total solar energy rejection, 99.9% UV blocking and 21% glare reduction.
Its key advantage is a bright, natural glass appearance with minimal mirror effect.
Its non-metallic construction also helps avoid concerns about mobile, Wi-Fi and radio signal interference.
3M Prestige 70 publishes 50% TSER on clear single-pane glass.
Based on standard shading-coefficient conversion, TW32 is estimated at about 43% TSER and TW36A at about 49%, although testing conditions differ.
3M PR70 and TW36A offer similar bright-film heat control, while TW32 allows more daylight. For strong west sun or glare, a darker film may provide better comfort.
Compare overall solar performance rather than infrared figures alone.
TW32 is the brightest on published visible light transmission at 73%, followed by PR70 at 70% and TW36A at 66%. Brightness alone, however, does not describe how the glass will look.
PR70 has lower published visible reflectivity, giving it the cleanest and least mirror-like finish.
TW32 and TW36A can look more reflective, especially from the brighter side of the glass or when indoor lights are switched on at night.
Customers should view real samples on their own glass before choosing.
Sumitomo Riko states that Refleshine uses a metal film and may shield radio waves when installed across a large part of a building.
This does not mean every home will experience a problem, but it should be considered for offices, full-height condo glass and locations with weaker reception.
3M Prestige 70 is metal-free and is promoted as having no signal interference or corrosion risk from metallic layers. For signal-sensitive projects, PR70 has the clearer technical advantage.
For bright HDB and condo living rooms, TW32 and PR70 preserve natural daylight, while PR70 offers a more discreet, low-reflective appearance.
TW36A provides stronger shading than TW32 but with slightly higher reflectivity. For offices and large glass areas, PR70 is often easier to specify where signal performance and facade appearance matter.
Refleshine remains a strong choice for Japanese-made, heat-reflective performance and value. Always check MCST or building requirements before installing reflective films.
Based on Zenith’s current guides, Sumitomo Refleshine is generally around S$10–S$12 per sq ft, while 3M Prestige is usually around S$12–S$13 per sq ft.
The final amount depends on model, total area, glass type, panel access and old-film removal.
Zenith provides Sumitomo Refleshine up to 10 years warranty, depending on model and installation conditions.
For 3M Prestige, Zenith’s stated coverage is 15 years for fixed and sliding panels and 3 years for casement or push-out windows.
Film performance and durability depend on more than the brand.
Before recommending Sumitomo Refleshine or 3M Prestige 70, Zenith should review the following:
There is no single winner for every window. 3M Prestige 70 is the stronger choice for customers who want the clearest glass, the lowest reflectivity and a metal-free film with lower signal concern.
Sumitomo Refleshine is attractive for customers who want Japanese heat-reflecting technology, a bright room and a lower typical price.
Choose TW32 when daylight is the priority. Choose TW36A when you want more heat control without moving to a dark film.
Choose PR70 when appearance, signal compatibility and premium clarity matter most.
At Zenith Window Films, excellence is in every installation. Don’t just take our word for it—see why thousands of customers across Singapore trust us for premium window film solutions and unmatched service.
TW32 and TW36A are the closest bright-film comparisons. TW32 is slightly brighter, while TW36A gives more shading. SEF25 is much darker and more reflective, so it is not a direct PR70 alternative.
Sumitomo Riko warns that its metal film may shield radio waves when installed over a large area. Many small residential installations may not notice an issue, but signal-sensitive homes and offices should assess this before installation.
PR70 publishes 50% total solar energy rejection on clear single-pane glass. Converted estimates place TW36A near that level and TW32 below it, but the manufacturers use different test standards, so site conditions and glass type still matter.
It depends on the priority. Refleshine offers Japanese heat-reflecting and insulating technology at a generally lower price. 3M Prestige 70 is better for low reflectivity, a clearer glass appearance and lower signal concern.
Published visible light transmission is 73% for TW32, 70% for PR70 on clear single-pane glass and 66% for TW36A. TW32 allows the most light, while PR70 usually looks cleaner because it has lower visible reflectivity.
They can reduce heat while keeping the room bright, but very strong west sun may need a darker film for better glare comfort. Zenith should compare the room condition, glass size and brightness preference before recommending a model.
Zenith’s current guides place Refleshine at roughly S$10–S$12 per sq ft and 3M Prestige at around S$12–S$13 per sq ft. Final pricing depends on area, glass, access and installation scope.
3M Prestige 70 is a metal-free multilayer film and is designed without the signal-interference concerns associated with some metallic films.
No. Glass type, existing coatings, damage, shading and thermal-stress risk should be reviewed first. Managed buildings may also have facade or reflectivity rules. A proper assessment is more important than choosing only by brand or specification.
3M Prestige 70 has lower published interior and exterior reflectivity than Refleshine TW32 and TW36A. It is normally the better choice when the customer wants glass that stays visually neutral and less mirror-like.
Send Zenith clear window photos, rough measurements, property type, sun direction and your main priority: heat, brightness, glare, signal sensitivity or budget.
Zenith can compare the most suitable Refleshine and 3M Prestige options before quotation.