Best results in all classes

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Products that are supposed to last a long time also have to be tested for a long time. Products made from Resysta have been used for over 20 years and in the harshest climates: From Florida to Sölden to Dubai or Singapore you will find products made from Resysta. Resysta can be described as resilient and almost indestructible. Thanks to its nature, the material is sustainable and gentle on the environment on the one hand, but also extremely immune to environmental and weather influences on the other.

Products made of Resysta can easily withstand heat, UV exposure, frost, salt or chlorinated water if they are installed correctly. Allgreen BP attaches great importance to the fact that all Resysta projects that we oversee and supply are masterfully built and that they are sustainable over the long term.

Sun, rain, cold, fast or salt cannot harm the weather-resistant Resysta. Still, it doesn’t take much to keep the material in good condition.

Material properties

cracking swelling splintering rotting insect infestation waterproof slip-resistant
Softwood ●●
Teak ●● ●● ●● ●● ●●● ●● ●●
UPM Timber
(Pine & Spruce)
●● ●● ●●
WPC ●● ●●● ●●● ●● ●●● ●●● ●●
Resysta ●●● ●●● ●●● ●●● ●●● ●●● ●●●

Xenon test

Task

In cooperation with the renowned „eph-Institut“ located in Dresden, Germany – Resysta carried out an „artificial weathering test of selected materials“. The Xenon test was chosen as test procedure.

Test Performance

Artificial weathering was carried out for 2000 h (after 650 MJ/m2 irradiation) with a Xenon tester CI 3000 (test device KL 31) according to DIN EN 11341.

Artificial weathering was conducted at the following test conditions:

  • 55°C black standard temperature
  • 50% relative humidity
  • Radiation intensity 0.5 W (m2 x nm) at 340 nm
  • Weathering cycle: spray cycle 18 min, drying phase 102 min

A factor of 15-25 can be applied to this 2000 h test. Assuming factor 20 and an average of 7 sunshine hours per day (Central Europe) this corresponds to a weathering period of 15 years.

The following assessments were carried out to characterize the weathering resistance:

  • visual evaluation of color change by means of gray scale according to DIN EN 20105-A02
  • visual evaluation after 500 h, 1000 h, 1500 h and 2000 h.

Test Material

“eph-Institut”“ was provided with 15 material samples with two test specimen each.
One specimen of each version was subject to the weathering test.

Resysta performed in collaboration with the renowned Dresden “eph Institute” carried out an “artificial weathering of selected materials”.

The xenon test was selected as the test method.

Read the whole test here

Visual evaluation

Teak

teak_ipe-initialstate-2

initial state

after 2000h

after 2000h

WPC

initial State

after 2000

UPM Timber

UPM

initial state

UPM after 2000

after 2000

RESYSTA ®

Resysta

initial state

Resysta Stained 2k

after 2000h

See all material samples in the Testreport here

Test Results / Details

Test Results at Artificial Weathering – Visual evaluation

MATERIAL VISUAL EVALUATION AFTER 2000h
Siberian Larch completely bleached surface, brittle, major structural differences early wood / late wood
Thermo Ash Tree completely bleached surface, brittle and cracked surface
IPE completely bleached surface
Redwood completely bleached surface, major structural differences early wood / late wood
Bangkirai brittle and cracked surface
Accoya Silver Patina patchy graying
Werzalit Terrazza brown rough surface, loss of gloss, several white particles individually visible
Mega Wood clearly visible change in color (bleaching)
WPC USA very severe change in color (bleaching), rough surface, loss of gloss, several white particles
individually visible
WPC USA XLM severely grayed surface
WPC USA Twin Finish clearly visible change in color (bleaching), brittle and cracked surface, several white particles individually visible
UPM – gray severe change in color (bleaching), rough surface
Rehau – Relazzo very severe change in color (bleaching), several white particles individually visible
Resysta + Glaze (Walnut) very slight change in color, individual white particles visible
Resysta + Glaze (Walnut) + 2K visible change in color, individual white particles visible

Recording of color change using gray scale gradation

MATERIAL after 500h after 1000h after 1500h after 2000h
Siberian Larch 1 1 1 1
Thermo Ash Tree 1 1 1 1
IPE 1 1 1 1
Redwood 1 1 1 1
Bangkirai 1 1 1 1
Accoya Silver Patina 2.5 2 1.5 1.5
Werzalit Terrazza brown 3 3.5 3 3
Mega Wood 4.5 3.5 3.5 3
WPC USA 1.5 1 1 1
WPC USA XLM 4 3 2.5 2
WPC USA Twin Finish 4 3 2.5 2.5
UPM – gray 4 3 2 1
Rehau – Relazzo 3 2.5 2.5 2
Resysta + Glaze (Walnut) 4.5 4 4 4
Resysta + Glaze (Walnut) + 2K 5 4.5 4.5 3.5

Rating scale for the assessment of color change by using the gray scale:

  • gray scale gradation 5: no visible change in color
  • gray scale gradation 4,5: very minor change in color
  • gray scale gradation 4: minor change in color
  • gray scale gradation 3,5: visible change in color
  • gray scale gradation 3: clearly visible change in color
  • gray scale gradation 2,5: very clearly visible change in color
  • gray scale gradation 2: severe change in color
  • gray scale gradation 1: very severe change in color

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