– Epoxy Specifications

THICKNESS – DURATOP monolithic, solid cast epoxy lab work surfaces, with a smooth, non-glare matte finish, are molded in several thickness, with the typical and most popular thickness’  being 19 and 25mm.

When fabricating Duratop laboratory tops and sheet material at the ISO 9001 certified manufacturing facility or locally at the Singapore and Johor, Malaysia storage facilities, all fabricated cuts are made with diamond tipped, water cooled, rotary saws. Sink cutouts, faucet or gas tap fixture holes or other service hole requirements, are cut with diamond tipped routers and drill bits. Typical specification for epoxy counter tops is 19mm or 25mm.  Also available are 16mm thick counter tops in limited colored epoxy.

Current manufactured and available thickness’ are:

IMPERIAL
METRIC
5/8″
15/16 MM
3/4″
19/20 MM
1″
25 MM
1 1/4″
32 MM
2 1/2″ Adhered
64 MM

MINIMUM Quantities apply for production purposes of some thickness’.

EPOXY CURBING 100 mm (4″) typical, also known as applied splash, is provided loose, cut to size with each sheet order if required, to match the counter top sizing, or can be field cut from sheet material to meet job requirements. Top front edge is typically eased with a 3/16″ Radius, Bevel or chamfer. The sheet material comes with a drip groove cut on the front underside of the sheet material at a prescribed depth of 1/8″ (3mm), 1/8″ (3mm) Width and 1/2″ (12mm) distance from the front or side edge. Epoxy sinks, drain outlets, Pegboards & Stainless Steel Troughs, faucets, eye wash, drench showers, etc., are offered to complete the lab requirement.


Cutaway

Chamfer


INTEGRAL or COVED CURB
back splash is also offered in 4″ (100 mm) and 8″ (200 mm) molded one piece height.
Corner units for Left and Right side applications with Integral Coved Curb, are produced at a size of 44 3/4″ Square (1136 mm) and then cut to size to meet all requirements for Integral Coved curb sides splash areas.
Coved Curb worksurfaces should be used when reducing the number of back splash joints is of high priority or architectural specifications call for integral coved curb splash. Full length Integral Coved Backsplash are available in seamless lengths up to 96″ [2438mm] and depths up to 38″ [965mm]. Other sizes are available or larger sheet depths can be cut to meet specific requirements. Coved Curb worksurfaces are integrally molded 1″ [25mm] thick with cove tapered at the top to 3/4″ (19 MM). By special request, 1-1/4″ [32mm] thick worksurfaces can be ordered with an Integral curb of 4″ [102mm] or 8″ (200mm) height. For other special height integral curbs, please contact Wholesome, for availability.

Integral-Coved-Curb

Both Left and Right Side Integral Coved Corner Curbs are produced
at a molded size Cove-Curb-Moldedof 44 3/4″ finished inches (1,137 MM) square.
This corner coved curb comes with a 44 3/4 ” Side Curb (1137 mm)
and a integrally molded back splash curb of 44 3/4″ (1137mm).
The depth of 44 3/4″ molded section can then be fabricated and reduced
to the required width or depth of the counter, as specified, be it 24″, 25″, 30, 31″,
(609mm, 635mm, 762mm 787mm), etc.

MOLDED Marine Edge / No-Drip Edge Duratop epoxy countertops or laboratory tops / bench toppings can be manufactured with an integral no-drip marine edge on front and/or sides or be applied, as required or specified.
Applied-Molded-MEMarine-Edge1Marine-Edge2

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Unapplied Marine Edge (UME) epoxy Flat strips are used for field attachment with Epoxy adhesive on the top surface of counter top material to form a marine edge or no-drip edge and offered in 1/4″ (6mm) thickness and in lengths up to 8′ (2.438 meters) length. Color matching epoxy adhesive is available for attachment.  UME Strips are NOT sold without epoxy sheet materials. UME strips are only available in Black Epoxy.
AME
Unapplied Marine Edge Strips in “L” Shape configuration:
These  Epoxy strips are field applied to 3/4″ (19mm) and 1″ Thick (25mm) thick epoxy or solid phenolic resin counter tops to form a no-drip marine edge. The “L” shaped design allows for coverage of the front edge of the counter top as well as the top surface in order to provide a uniform epoxy edge treatment to the work surface material.
UME “L” shaped strips are NOT sold without epoxy sheet materials
and only available in Black Epoxy.

Window Sills (Stools) Epoxy - Material shall be monolithic, DURATOP cast epoxy resin product and shall
consist of a polymerized cast resin material formulated to provide a surface with high chemical resistance characteristics.  Surfaces shall have a uniform low-sheen surface and the finished materials shall be extremely hard and resistant to scratches and abrasion. Surface is to be flat with square side edges or fabricated and finished if sills protrude past wall depth. Color shall be as required by architect or site conditions, obtained from the manufacturer’s standard color range. Colored Epoxy adhesive for securing interior stools to substrate shall be Duratop Epoxy Smooth-On-2 part adhesive cement.

See accessories for other Epoxy related products available.

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Physical Characteristics
DURATOP Epoxy

Physical Property
ASTM Method
RESULTS
FLEXURAL STRENGTH
ASTM D790
13,400 to 13,600 psi
MODULUS of RUPTURE
ASTM D790
1,000,000 psi
COMPRESSIVE STRENGTH
ASTM D695
35,000 to 38,000 psi
TENSILE STRENGTH
ASTM D638 / D651
6,400+ psi
HARDNESS, ROCKWELL “M”
ASTM D785
Average value of 105 to 113
over 5 samples
SPECIFIC GRAVITY (Density)
ASTM D792
126.75 LBS/FT3 / 2.03 g/cc
to 133 LBS/FT3 / 2.13 g/cc
WATER ABSORPTION
ASTM D570
0.01 to 0.02%
HEAT DISTORTION
ASTM D648
325 to 331F (161 to 166C)
FLAMMABILITY or FIRE RESISTANCE
ASTM D635
DID NOT IGNITE
FALLING BALL IMPACT RESISTANCE
ERF-23-69
NO FRACTURE @ 7 FEET
TEMPERATURE USE LIMIT
331F (166C)
COEFFICIENT OF THERMAL EXPANSION
ASTM E831-06
2.4 x 10-5power in/in per Degree C
FUNGAI & BACTERIAL GROWTH RESISTANCE
ASTM G21 & G22
APPROVED
FOOD AND SPLASH ZONE
NSF / ANSI standard 51
APPROVED
1 1 1

Duratop, a Monolithic modified cast epoxy resin, is highly resistant to normally used laboratory alkalis, alcohols, acids and solvents. The following solutions were tested on Black Epoxy for a period of 24 hours, with results indicated when tested with listed reagents in accordance with NEMA standard LD-3, test procedure 3.9.5.

CHEMICAL RESISTANCE
RESULT
Acetic Acid, Glacial
No Effect
Acetone
Slight effect
Ammonium Hydroxide – 28%
No Effect
Amyl Acetate
No Effect
Aqua Regia
No Effect
Benzene
Slight Effect
Butyl Alcohol
No Effect
Calcium Hypochlorite
No Effect
Carbon Disulfide
No Effect
Chloroform
No Effect
Chromic Acid – Saturated
Slight Spot
Ethyl Alcohol – 95%
No Effect
Ethyl Acetate
No Effect
Formaldehyde – 37%
No Effect
Hydrochloric Acid – 48%
No Effect
Hydrogen Peroxide – 30%
No Effect
Kerosene
No Effect
Methyl Alcohol
No Effect
Nitric Acid – 20, 30 & 70%
No Effect
Phenol – 85%
No Effect
Phosphoric Acid – 85%
No Effect
Silver Nitrate – 10%
No Effect
Sodium Hydroxide – Flake
No Effect
Sodium Hydroxide – 40%
No Effect
Sodium Hydroxide NaOH – 60%
No Effect
Sulfuric Acid – 77%
No Effect
Sulfuric Acid – 96%-98%
Failure
Zinc Chloride
No Effect
Monochlorobenzene
No Effect
Gasoline
No Effect
Toluene
No Effect
Formic Acid – 90%
No Effect
Remel Bactidrop Oxidase Reagent
No Effect
Remel Bactidrop Spot Indole Reagent
No Effect

Evaluation Ratings: RETURN TO TOP
1) No Effect – No detectable change in the material surface.
2) Excellent – Slight detectable change in color or gloss.
3) Good – Clearly discernable change in color or gloss.
4) Fair – Objectionable change in appearance due to surface discoloring or etching.
5) Failure – Pitting, cratering or erosion of work surface material. Obvious deterioration.

Fire Resistance

USING ASTM D-635 TEST PROCEDURE, A 3/8″ (9.525mm) BUNSEN BURNER WAS OVERTURNED ON THE DURATOP EPOXY WORK SURFACE FOR FIVE (5) MINUTES WITH NO ADVERSE EFFECT. EPOXY RESIN IS SELF EXTINGUISHING AND SHOWS NO BURN RATE, IN ACCORDANCE WITH ASTM METHOD D-635. INDEPENDENT LAB TEST AVAILABLE UPON REQUEST.

ALL INFORMATION DESCRIBED HEREIN IS BASED UPON MANUFACTURERS’ TESTS AND DATA BELIEVED TO BE ACCURATE AND CURRENT. THE INFORMATION PROVIDED IS TYPICAL AVERAGE VALUES AND CHEMICAL RESULTS MAY BE COLOR DEPENDENT.
NO ONE MATERIAL IS SUITABLE FOR ALL THE CONDITIONS POSSIBLE. THEREFORE THE PROPERTIES OF ANY MATERIAL SHOULD BE CHECKED FOR SUITABILITY UNDER THE SPECIFIC CONDITIONS OF EACH INSTALLATION. THE FINAL DETERMINATION FOR SUITABILITY OF DURATOP EPOXY RESIN MATERIALS DESCRIBED ABOVE IS THE SOLE RESPONSIBILITY OF THE USER.