ZJ-6000 Silicone Structural Sealant is a one-part, neutral cure,
specifically designed for structural bonding and curtain wall
adhesive construction applications. It easily extrudes in a wide
rang weather condition and quickly cures at room temperature to
form a high durable and flexible silicone rubber seal.
Structural Sealant has an excellent adhesive to most of
construction material without a primer.
It has good features as follow:
a. Can be easily used and extruded any time.
b. Neutral cure-suitable for use on most construction materials.
c. Excellent adhesion to most construction materials without the primmer.
d. Excellent weather ability and stability.
e. High modulus after cured, extension/compression movement capability of up to ±25% of the original joint width.
Structural applications require prior testing and written print
review by ZHIJIANG Company.
Where to use
ZJ-6000 Silicone Structural Sealant is designed for use in
structural glazing applications such as: use for structural
adhesion and seal the joints of the structural glass and metal or
other building components in the factory or building site. It is
also be used to adhere stiffening elements to building panels and
for other similar adhesive applications.
ZJ-6000 silicone structural sealant for construction is fit for
structural usage. It should NOT be applied in the following
a. To all spaces that bleed oils, plasticizers or solvents such as
wood immersed in oil, oil
Crack filler, and some uncured or sulfur zed fat, it should NOT be
b. To the unventilated space (Silicone sealant need the water in
the air to cure)
c. To the circumstances as immersed in water for a long time,
underground all the year
d. To painted surfaces, may cause seal failure as the paint
cracking or paint stripping
e. Frost or wet surfaces
f. Surface touch the food directly
g. Easily suffer mechanical clash
h. Fireproofing seal system
Typical properties (for reference)
The following data is for reference, is not suggested to make
Test at 50±5% RH and temperature 23±2℃
Have no grain, no agglomerations,1
Pass the the standard
Tack Free Time, h
Extrusion ability, S
Curing time at 50±5% RH and temperature 23±2℃,days
As Cured –After 21days at 50±5% RH and temperature 23±2℃:
Durometer Hardness,(Shore A), points
Tensile strength at 25% elongation, Mpa
Tensile strength at 50% elongation, Mpa
Tensile strength at ultimate elongation, Mpa
Ultimate elongation % at break，%
GB/T1___Chinese national standard
ZJ-6000 Silicone Structural Sealant can keep good viscidity and can
easily extrude between -25℃ to 50℃; Can keep good flexibility between -50℃ to 150℃ after cured.
GB16776; ASTM C 920;
Black. We can also supply the other color according to the
It is available in 300ml plastic cartridges, 24 cartridges/ carton.
or 590ml aluminum sausages,20 sausages /carton.
Storage and usable life
When stored at dry and airy, 27℃ or lower temperature conditions in the original unopened container,
ZJ-6000 has a shelf life of 12 months from the date of manufacture.
Construction project technology service
It's needed to take the design, choose materials, operation into
consideration for the structural joint sealing. The technical
communication between suppliers and applicants are necessary for
the present situation: varied sealant types, daily changing
materials and the compatibilities between surface treatment and
materials. Hangzhou Zhijiang Silicone Chemicals Co., Ltd. gives
construction project technical services as follows:
Shop drawing showing sealant join details must be submitted to
ZHIJIANG Silicone technical staff for a drawing review prior to the
Use of ZHIJIANG ZJ6000 Silicone Structural Sealant in any
ZHIJIANG Silicone will evaluate tests about the adhesion of our
products to job site or representative job site materials in
standard laboratory. Results of the adhesion testing, product
recommendations and surface preparation will be forwarded in
Incompatibility of glazing materials can lead to sealant
discoloration and/or loss of adhesion. To help protect against
these problems and to ensure compatibility, ZHIJIANG will also test
and provide information on the compatibility of accessory materials
(gaskets, spacers, etc.) and other ZHIJIANG Silicone sealants.
Structural glazing joint design
The design of a silicone structural joint must be prepared by the
design professional, based upon industry accepted design
A typical silicone structural joint is illustrated in Figure 1.
Basic design parameters include:
The structural bite must be a minimum of 6mm
The glue line thickness must be a minimum of 6mm
The structural bite must be equal to or greater than the glue line
The structural bite should not be greater than 3 times of glue line
The minimum structural bite is calculated as:
Structural bite(only for Wind load)=0.5×Short Side of
Panel(mm)×Wind load(kPa)/Seal and Design Strength(138kPa)
The minimum glue line thickness should be greater than:
Displacement(mm)/[(Sealant movement capacity)×(2+sealant movement
The structural sealant must be able to be filled using standard
The structural joint must not move during cure
If the silicone is intended to support the dead load, 6.9kPa dead
load design strength is allowable
Note: Other proprietary systems may have alternate details. The
appropriateness of such systems will be determined on a
These are preliminary guidelines, consistent with common industry
Cleaning all grease, dirty, water, klunky sealant from surface,
accessories and protective coatings and any pollutant left inside
joints and sunken parts.
Metal and glass should be cleaned by two-cloth. The solvent used
will be methyl ethyl ketone, tolune or xylene and observe the using
rule. If for plastic, use the guided solvent from suppliers.
Depending on the condition of the surface, porous substrates may
require abrasion cleaning, solvent cleaning or both. Surface must
keep dry and clean. Dirties and other impurities should be blew off
by non-oily compressed air or gulfed by vacuum cleaner.
It's commonly not necessary for priming on using zhijiang silicone
sealant. If recommending primer after adhesion tests pour zhijiang
primer to a clean, dry, lint-free cloth and gently wipe surface
till a thin film formed. Later application.
Masking tape should be used to keep excess sealant from contacting
adjacent areas where it is not intended, to ensure an aesthetically
pleasing job. Tool the sealant with light pressure before a skin
begins to form (typically 10 to 20 minutes). Remove the masking
tape before the sealant skins over.
Generally, three common backer rod types can be used : Open-cell
polyurethane, Closed-cell polyethylene, Non-gassing polyolefin.
When a backer rod cannot be positioned in a joint opening, a Teflon
or polyethylene tape should be used to prevent three-sided
Install backing material or joint fillers. Set blocks, shims and
tapes. Cut the nozzle of ZJ-6000 and fit into gun and make
extrusion diameter fit for joint. Continuous extrude sealant into
joint without air forming. Care must be taken to ensure complete
fill of the sealant cavity. Tool the sealant with light pressure
before a skin begins to form. Make sealant surface a sunken shape
using raised tool. Not use soap water for assistant. Remove the
masking tape after tooling. The sealant for bottom joints should be
tooled into slope to protect water accumulation. The surface of
sealant should be dry and frost-free. The uncured sealant is not
permitted to contact with polished granite, metal or glass to
preventing a thin film formed on the substrate surface to affect
the esthetic things. Use masking tape. If sealant contact with
non-porous material, clean out with methyl ethyl ketone, tolune or
xylene.Warm temperature and high humidity will help the curing o