Exterior Insulation & Finishing System (EIFS)

G Tech EIFS System Qualification

Test Method Description Typical Results
Military Standard 810B Method 508 Mildew & Fungus Resistance No Growth of Mildew or Fungus
ASTM D1308 Chemical Resistance Regent Concentration Discoloration Softening
    Hydrochloric Acid 37% considerable slight
    Clorox Bleach undiluted none none
    Mineral Spirits 100% none none
    Lacquer Thinner 100% none considerable
    Fuel Oil No.2 100% none none
    Gasoline 100% none  slight
    Ethyl Alcohol undiluted none moderate
    Sodium Hydroxide 20% none slight
    Ammonium Hydroxide 29% none none
    Acetic Acid 5% none slight
ASTM 108 modified for vertical surface Fire performance of an exterior wall system Pass: *G Tech Finishing Coat did not contribute to horizontal flame spread; did not cause vertical flame spread beyond height of specimen. *Intact finishing coat and reinforcing fiberglass mesh layers were capable of preventing flame intrusion into wall cavity.
UBC 17-6 Fire performance of a multistory exterior insulation system G Tech finishes met all acceptance criteria.
UL 723 (ASTM E84) Test for surface burning characteristics of materials 0=value for flame spread

0=value for smoke development

ASTM D968 Abrasion resistance 600 litres of sand-no effect; wt. loss less than 17.5mg
ASTM B117 Sa;t-spray (fog) resistance 1000hrs. - no deleterious effect
ASTM G26 Accelerated weathering 2000hrs. - no cracking, flaking, or deleterious effect
ASTM G23 Accelerated weathering 2000hrs. - no cracking, flaking, or deleterious effect
ASTM G53 Accelerated weathering 2000hrs. - no cracking, flaking, slightly whitening
ASTM G297 (to 3 different substrates) Bond strengths

20.9 psi on 1/4" cement asbestos board

13.8 psi on 1/2" water resistant gypsum sheating

25.1 psi on concrete

FTMS 406, Method 1074 (2lb steel ball) Impact resistance 96 inches-pounds without cracking or delaminating
ASTM D2794 (steel cylinder) Impact resistance 60 inches-pounds without cracking or delaminating
ASTM E695 (Leather bag with lead shot) Impact resistance Drop of 6 ft. between studs results in no cracking or delaminating
ASTM E330 (4" thick EPS foam) Resistance to winloading 100lbs per sq. ft. positive and negative loads without delaminating
1 cycle of 8 hrs. water soak at 75F, then freezing 16 hrs. at 0F Freeze/thaw stability of cured system 75 cycles with no effect
1-8 hrs. cycle each: air drying at 120F and water soak at 70-80F; then freezing 16 hrs. at -20F Freeze/thaw stability of cured system 10 cycles with no effect
ASTM C355 Water vapor transmission 52 grains an hour per sq. ft., or 118 perms
Fed Spec. TT-C-5558 Parag. 4.4.7. Wind-driven rain resistance No signs of moisture after 28 hrs. Total weight gain of 0.06lbs
FTMS 141a. Method 6201 Moisture resistance/humidity test 1000 hrs. with no deleterious effects

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G.T.S.I Corp. / Shanghai Hongerte Co. Ltd. / Torrey Hills Tech / JV Companies