Installation Guide

ManualsBrandsLaHabra ManualsBuilding materialsFastwall Stucco Base 80 lb. One Coat Sanded Pump Grade Gray

Test Method ICC AC 11 Testing Criteria Results

Accelerated Weathering

ASTM G153 2000 Hours No cracking, checking, crazing, erosion, or chalking.

ASTM G155 2000 Hours No cracking, checking, crazing, erosion, or chalking.

Compressive Strength ASTM C109

28 days

2538 psi

Flexural Strength ASTM C348 No AC 11 Requirement 623 psi

Freeze-Thaw ICC AC 11 10 cycles No cracking, checking or crazing

Transverse Loads ICC AC 11

Allowable design loads

Refer to ESR 2564

Drainage ICC AC 11

90% Efﬁciency required when EPS

is used

Pass. Refer to ICC-ES ER-2564 for listed assemblies

Surface Burning Characteristics ASTM E84

Flame spread <25, Smoke

Developed <450

Flame Spread: 0

Smoke Developed: 0

Fire Resistance ASTM E119 One hour ﬁre resistive rating Pass. Refer to ICC-ES ESR-2564 for listed assemblies

Combustibility

ASTM E136

Noncombustible Material Pass

Multi-Story Fire Evaluation

UBC 17-6

Required for Non-combustible

Construction

Pass. Refer to ICC-ES ESR 2564 for assembly

Radiant Heat Exposure

NFPA 268

Required for Non-combustible

Construction

Pass. Refer to ICC-ES ESR 2564 for assembly

** These are typical laboratory test results but do not constitute a specification.

DESCRIPTION:

n A fiber reinforced stucco base

n Factory prepared mixture of portland cement,

fibers, sand and proprietary ingredients

n Can be installed 3/8-1/2 in. (9.5-12.7mm) thick in

one application

n Color: Gray

USES:

Stucco Base over:

n Concrete

n Masonry

n Metal lath

Lath is applied over:

n Appropriate water resistive barrier over

continuous sheathing

n Expanded polystyrene (EPS). Per LaHabra

Specification and Application Guide. (Not

for Interior)

COMPOSITION:

n Binder: Portland cement

n Synthetic fibers

n Mineral and organic additives

MATERIAL STANDARDS:

Cement: ASTM C150

Lime: ASTM C206

Fibers: ASTM C1116

PROPERTIES:

Meets code criteria for exterior cementitious coating.

ICC-ES Report ESR-2564 includes 1 hour fire-resistive

assemblies.

COVERAGE:

Depending on the condition of the substrate

and thickness of application approximate coverages

per bag are:

n at 3/8 in. (9.5mm): 20-25 ft

(1.9-2.3 m

)

n at 1/2 in. (12.7mm): 15-19 ft

(1.4-1.8 m

)

n Coverage may vary due to ambient temperature,

surface temperature, surface porosity, mixing

methods, application methods, amount of water,

wall type and metal lath type. Coverage must be

veriﬁed in the ﬁeld using the same procedures and

conditions that will be present at the project.

CONTAINER:

80 lb (36 kg) net weight in a moisture resistant bag.

n Storage: Store off ground and protect from rain

and moisture

n Shelf Life: 12 months if protected from sun and

moisture

WORkING TIME:

Sets in 30-45 minutes after mixing, depending

on conditions.

SURFACE PREPARATION:

n On masonry and concrete, apply only to surfaces

that are sound, clean, dry, unpainted, and free

of any residue which may affect the ability of

LaHabra Fastwall Stucco Base to bond to the

surface.

n Solid bases shall have sufficient suction (ability

to absorb water) or surface roughness or both to

ensure an adequate bond for LaHabra Fastwall

Stucco Base.

n On lathed construction, apply to lathing installed

in accordance with ASTM C1063.

n LaHabra Fastwall Stucco Base requires water-

resistive barrier installed and flashed in

accordance with building code and to form a

water-shedding surface. Stucco is not a water-

resistive barrier.

n Install water-resistive barrier (type and method

of application) per Parex USA Stucco Application

Guide or Specifications.

n Do not apply to substrates which are frozen or

contain frost or ice.

n Apply to surface prepared as for portland cement

plaster.

n For additional surface preparation options,

contact Parex USA Technical Support.

MIXING:

n Use clean equipment for mixing

and preparation.

n Mixing ratio: approximately 1.5 gal (5.6 L) water

per 80 lb (36 kg) bag.

n First add approximately 90% of needed water

in the mixer, then add the LaHabra Fastwall

Stucco Base Sanded. When mixture becomes

homogeneous, add remaining water. Mix at low

speed for a minimum of 3 minutes, until the

mixture is smooth.

n Do not overmix; never mix more than five

minutes. Mix each batch for the same amount

of time. Mix batches of the same size, using the

same amount of water, to ensure consistency.

n Use cool, potable water; let hose run to clear if it

is hot water.

n Use LaHabra Fastwall Stucco Base immediately

after mixing.

n Do not retemper LaHabra Fastwall Stucco Base.

Fastwall Stucco Base

Pump Grade Sanded

Summary of content (2 pages)

PAGE 1
Fastwall Stucco Base Pump Grade Sanded DESCRIPTION: n A fiber reinforced stucco base n Factory prepared mixture of portland cement, fibers, sand and proprietary ingredients n Can be installed 3/8-1/2 in. (9.5-12.7mm) thick in one application n Color: Gray USES: Stucco Base over: n Concrete n Masonry n Metal lath COVERAGE: Depending on the condition of the substrate and thickness of application approximate coverages per bag are: n a t 3/8 in. (9.5mm): 20-25 ft2 (1.9-2.3 m2) n a t 1/2 in. (12.
PAGE 2
n P arex USA Adacryl Acrylic Admix & Bonder: As an admix: Use up to 1 qt (1.0L) per bag of LaHabra Fastwall Stucco Base Sanded. After the dry components and the majority of the water has been mixed, add the acrylic admix in place of 1 qt. (1.0L) of water. Mix no longer than required to provide a uniform mixture. DO NOT OVER-MIX. Over-mixing entrains excessive amounts of air which weaken the material. Do not re-temper mixes over 20 minutes old.