General Information

Availability:

• Manufactured by Omni Building Products in the USA.
• Distributed to licensed distributors
• Is currently patented or patent pending in over 25 countries worldwide

Materials:

• Manufactured as a chemical concentrate and is environmentally friendly exhibits increased strengths and excellent bonding qualities used as a thin set material.
• Exhibits low absorption rates for use as a surface coating or waterproofing controls efflorescence and shows chemical resistance to acids and alkaline can be troweled, sprayed, poured, cast, and pumped.
• Can be used full strength for bonding and coating applications
• Can be mixed with sands and aggregates to increase volume, add texture, and reduce crazing or cracking of finished products.
• Can be mixed with Portland Cement, Mortar, Plaster, and Paint.

Design:

• High early polymer concrete mixture
• Can be poured as a lightweight slab or diaphragm due to its bonding and high strength characteristics
• Shows outstanding fire rating qualities
• Can be used as a structural surface coating or constructed into structural lintels, bond beams, and slabs.
• Can be used as a surface coating, mortar, grout, or finished product. can be colored and textured to designers needs.

Application:

DynoBond WILL ADHERE TO DynoBond

• Is mixed on site using cement mixers or high speed drill mixers
• Is installed using common methods of application trowel, brush, or spray material and equipment is cleaned up using water
• Adheres to most porous surfaces, such as masonry, concrete. EPS, wood and gypsum products.

Benefits:

Design:

• Produces a very hard durable mat finish with low absorption rates that compete with high priced chemical coatings
• Improves the basic characteristics of concrete such as flow ability, setting time, and chemical resistance, as well as added bonding, compression and tensile strength
• Provides architects and engineers increased design freedom due to these increased strengths and bonding characteristics.
• Can be used for both interior and exterior applications.
• Improves fire resistant construction.
• DynoBond can be built up using multiple layers or applications.
• Can be used as a waterproofing or structural surface coating.
• Can be colored, textured, or mixed to resemble natural stone, brick, or tile.
• Bonds readily with steel reinforcement, mesh, and steel formed products.
• Can be used to bond and coat EPS, expanded polystyrene

Economics:

• DynoBond is a simple product: that is mixed on site with Water, Portland Cement, EPS and aggregates
• Easily constructed into finished products.
• Does not require skilled laborers, special tools or equipment
• A multi functional polymer concrete for bonding, coating, and casting.
• Excels when used in thin layers for coating and bonding.
• High strength characteristics allows for lightweight construction techniques
• Can be mixed with sand and aggregates to increase the volume and densities of the finished mix
• Can be retempered using water extending the products pot life.
• Can be used as a ONE STEP, thin set and grout for ceramic tile, brick, and pavers.
• Can be used with premixed cement mortar mixtures.
• Manufactured and shipped as a concentrate reducing transportation costs.
• As a dry concentrate, DYNOBOND has unlimited self life
• Is USER FRIENDLY where equipment is cleaned up using water.

THE DYNAMICS OF BONDING AND USE OF DYNOBOND
Mortars and grout materials have been used to join masonry materials together since the construction the Great Pyramids of Giza. However it was not until the 19th Century when Portland cement was developed, that mortars became a structural component equal in strength to the masonry blocks it bonds together. Concrete and mortars are simply constructed by combining various ratios of Portland cement, sand, and aggregate with potable water, forming a slurry type mixture that can be sprayed, troweled, or poured into molds that when cured creates a solid substrate that resembles the form it is placed within. To improve this basic concrete mixture, various chemical polymers are added to obtain special characteristics such as improved flow ability, setting time, chemical resistance, and added strength.

DynoBond Is a DRY Concentrated Concrete Polymer Admixture that is exclusive to Omni Building Construction Products and it's Licensed distributors and hold a registration status of being patented or patent pending in 25 countries worldwide. Manufactured as concentrate each packaged is designed to be mixed on site with potable water. This forms a milky white liquid, which is referred to as DynoBond, which as a LIQUID is then substituted for the water you use to hydrate cement, mortar, or plaster. As with all cement mixtures various aggregates, sand, and color can be added to increase the volume, add texture, and control cracking or crazing of the finish product.

DynoBond will adhere to most porous surfaces and exhibits increased tensile, shear, and compressive strengths in excess of 8,000 psi. used to bond, grout, or surface coat masonry, concrete, steel, or Expanded Polystyrene (EPS) foam type construction. DynoBond can be applied by common methods of application such as a brush, trowel, or spray requiring no special skills for application. DynoBond when used as a thin set mortar, grout or surface coating will exhibits the following design characteristics:

1. INCREASED STRENGTHS
2. EXCELLENT BONDING QUALITIES
3. LOW ABSORPTION RATES
4. INCREASED CHEMICAL RESISTANCE
5. ENVIRONMENTALLY FRIENDLY

DynoBond is a chemical concrete admixture manufactured as a concentrate. The quantity of DynoBond required to impart the desired performance is generally very small in relation to the quantities of the other mixing ingredients, that of sand and cement. To increase the volume of the mix, basic formulas have been developed featuring DynoBond chemicals and Portland cement as design constants where: ONE bag of DynoBond is to be mixed with TWO gallons of Portland Cement. The variables become the proportions of sand and water used to increase the volume, improve the workability of the mix, and final end usage. In it's simplest form, DynoBond Liquid in a ratio of 1:1 should be used for BONDING and structural usages. In the more diluted form DynoBond mixed 1:2 used for surface COATING, and mixed in a ratio of 1:3 used for GROUTING or leveling slabs. Understand that when water is first added to DynoBond, No Chemical change has occurred yet. This liquid mixture can be put in a covered container and has an unlimited shelf life unless evaporation takes place. However, the chemicals must be re-dispersed in the water prior to usage.

COMPRESSIVE STRENGTHS
DynoBond exhibits compressive strengths that supersede standard mortar mixtures by over a 4 to 1 ratio. Standard mortar mixtures are designed and tested to approximately 2,000 PSI. DynoBond mortar mix(s) have been independently tested with results exceeding 8,500 PSI in accordance with the following ASTM Standards; ASTM C-270-84, C-395-80, C-307-77, C-321-77, and C-579-75.

ABSORPTION RATES
DynoBond's low absorption rate of less then .083 percent in accordance with ASTM C-216, makes DynoBond an ideal solution for surface bonding, damp proofing or waterproofing for both the interior and exterior applications. These applications can be applied by brush, trowel, or spray. A second positive characteristic of DynoBond is a lower absorption rate, which reduces potential damage from freeze thaw cycles or from long term exposure to moisture in accordance with ASTM C-413-80.

MANUFACTURING
DynoBond is manufactured as a DRY material and is placed in sealed plastic bags. Once sealed this admixture exhibits an extended shelve life when stored in a cool dry place with temperatures that range between 40 to 90 degrees Fahrenheit. This DynoBond mixture is then added to potable water forming a milky white liquid base material, referred to as Dyno-LIQUID. This liquid ingredient is then mixed with Portland cement or a sand and cement mixture forming the body of this cementitious mortar, grout, or coating.

WATER
The DynoBond concentrate is required to be mixed with water. This water should be from a potable supply from a domestic source. Water should be clean and free from injurious amounts of oil, acid, alkali, organic matter, or any other harmful substances. This basic requirement applies for all water used for mixing, tempering, cleaning, and curing. The amount of water used to mix DynoBond at the construction site is left to the discretion of the mason. Limits shall be set to advise the mason of the maximum amount of water to be consistent with the final design usage. Further, the water proportions should recognize that flowable and workable mixtures are very important to the installation performance of the finished product. Water ratios need to correspond directly to the structural bonding requirements based on following: Adhesion of the DynoBond concrete to the proposed base materials, and the cohesion requirements of the Portland cement and sand mixture which develops the final strength, durability, and weather resistance of the finished product.

However, the usage of excessive water may result in dropouts or segregation of product, fall or slide off, excessive shrinkage or cracking, high porosity and absorption rates , and lower design strength. Design Note: Determine the batch type, volume of material(s) required for your project. Have all equipment for mixing and clean up available on site prior to starting the mixing operation.

MORTAR - GROUTS
DynoBond exhibits superior bonding and compression strengths when compared to standard mortar mixes used for constructing both bearing and non-load bearing masonry walls. This feature allows architects and engineers increased design freedom. By simply adding sand or aggregates to the standard DynoBond cement or mortar mixes, a high strength structural grout is developed, for construction of internal bond beams, lintels, and grade beams. Structural columns are constructed by filling masonry block cavities or vertical grooves cut into EPS by pouring DynoBond grout into these voids, with the addition of vertical steel reinforcement. This structural grout can also be confined on the edges and poured into flat sheets or slabs developing very high strengths in very thin layers. These slabs provide structural stability when used as a lightweight floor or roof diaphragm that will exhibit low absorption rates, increased fireproofing, and can be colored or textured to the designers needs. In addition these DynoBond grouts and mortars can be sprayed or troweled to be used for surface bonding both interior and exterior walls. These coatings serve as both protective weatherproofing and as the finished texture.

SURFACE COATING
DynoBond when applied as a surface coating results in a very hard concrete mat finish with all the advantages of conventional masonry such a permanence, fire safety, and long term durability. In addition, DynoBond will produce a strong composite wall construction, that is waterproof, attractive, and provides significant economical savings in both time and materials over ordinary stucco mortars and masonry finishes.

BONDING
The application of DynoBond as a bonding agent is directly related to the suction (ability to absorb water), of the solid surfaces it is intended to bond together and the surface roughness of the same products, or a combination of both characteristics to provide the bond required. The water intake or absorption rate of the masonry surface is a good indication of the chemical bond that will be developed at the base-adhesive interface. Low-absorption surfaces or materials may require the application of a dash or scratch coat used to cover most of the surface prior to application of the finish coat. Typical type M mortars joints average bonding strengths of 200 to 225 PSI with structural failure occurring at the mortar joint. DynoBond exhibits increased bonding strengths ranging between 525 to 610 PSI in accordance with ASTM standards. DynoBond bonding test results prove, ALL TEST FAILURES OCCURRED IN THE BLOCK UNITS. Laboratory tests show when a series of similar high strength solid concrete blocks are bonded together using DynoBond as a thin set mortar and forced to failure according to ASTM C-395-80 and C-270-84, resulted with the face of the solid block being ripped and average of 1/2 to 3/4 of an inch in depth from the surface of the block. In all tests the bond stayed intact.

Therefore, any concrete block or masonry design, using DynoBond as a mortar or grout, will be limited based on the strength of the block prism, instead of the masonry bond.

SAND - AGGREGATES
Various sand and aggregates can be added to DynoBond to increase the volume, add texture, and control cracking and crazing of the finished product. It is important to note that all sand and aggregates are not the same and will vary from job to job-based composition, on particle size, and moisture content. For best performance it is important to develop and maintain a constant Cement to Sand ratio and Cement to Water ratio based on the method of application and intended usage of the product with design approvals from local engineers in accordance with established building codes and the following recommendations. These design requirements for usage of sand are simple:

1. Sand must be from a clean upland source free from organic materials.
2. Sand should be from a uniform source and screened to a uniform size dependent upon the design thickness of the finished product or the required exposed finish of the aggregate.
3. When using COLOR all aggregates should be uniform in color or natural tint from a consistent source.
4. Measurements of sand and aggregate shall be in the damp, loose condition.
5. Establish the moisture content of local sand or aggregate (refer to design note).
   
   Design Note:
   Prior to application, it is recommended that the mason perform a sample batch test. This test mixture will be used to check the moisture content of local sand. This allows the mason to adjust his design mix, accomplished by establishing the quantity of additional water required to provide workability, desired texture, and uniformity.

EPS (EXPANDED POLYSTYRENE) - AGGREGATES
Various EPS aggregates can be added to DynoBond to increase the volume, add texture, and decrease the weight of the finished product. It is important to note that all EPS aggregates are not the same and will vary from job to job based on shape and particle size. For best performance it is important to develop and maintain a constant Cement to EPS ratio and Cement to Water ratio based on the method of application and intended usage of the product. These design requirements for usage of EPS are simple:

1. EPS must be clean and free from organic materials.
2. EPS should be a uniform size dependent upon the design weight and strength of the finished product or the required exposed finish
3. Measurements of EPS, cement and water should be consistent.
4. Establish the aeration factor of the final product and maintain for consistency.
   
   Design Note:
   Prior to application, it is recommended that the user perform a sample batch test. This test mixture will be used to check the density of the final product under controlled mixing conditions. This allows adjustment of the design mix, accomplished by establishing the quantity of additional water, micing time etc. required to provide workability, desired texture, and uniformity.

CEMENT - MORTARS
For best results, the DynoBond liquid should be mixed with a constant source of freshly manufactured Portland cement or Mortar mixtures. These cementitious products should be free of lumps, debris, and premature hydration. Based on the final usage of the DynoBond, alternate mixtures of Portland cement and Mortars can be used to achieve various mixing characteristics and finishes.

The mixture of 50-50 Type M Mortars and Portland cement will improve workability and increase the pot life of DynoBond when used as a spray or as a troweling material. For thin set applications it is recommended to use just Portland cement. As in all construction projects: proper planning prevents poor performance. For best results, the project should be defined as to the type of application, the method of application, the finished product required, and the local environmental conditions. Design Note: Slowly, mix the proper quantity of Portland cement with the sand coated with DynoBond. This will prevent the lumping of the cement creating a uniform workable material. If Portland cement source appears lumpy or firm within the bag, remove required quantity and blend with a high-speed drill type mixer until cement is loose and Fluffy.

WORKABILITY
DynoBond is a high early polymer cement product. Upon initial application it is imperative, especially when structural bonding and surface coating that DynoBond shall not be disturbed and allowed time for initial set and curing of the concrete product. Early disturbance of the initial set and cure of DynoBond can effect or damage the finished product As a result the DynoBond can be broken or cracked reducing the structural bond or finish of the product. The property of freshly mixed cement or plaster that determines its working characteristics and the ease with which it can be mixed, placed, and finished. When selecting the design mix the following items must be taken into consideration:

1. Suction of background or base materials
2. Surface roughness or irregularities
3. Climate extremes and extent of surface exposure
4. Method of application and curing

The following numbers represent an average setting and curing time for typical DynoBond sample mixes for used for thin set adhesives, spray coatings, and mortar usages. Heavier grout and slab mixtures may require longer setting times based on local curing conditions.

Note:
DynoBond is a high early cement material, however final design strengths are achieved over a period of 28 days. Any variance from this curing period must be verified by manufacturer, local structural or testing engineer.

RETEMPERING
DynoBond is a high early cement based adhesive with a typical pot life of about 15-20 minutes depending upon the temperature, the humidity, and the length of mixing time. If the material begins to stiffen the DynoBond can be tempered by the addition of small amounts of water and remixed. Retempering of base coat DynoBond cement is permitted one time using water only after the initial mixing Mixes not used within 15 minutes of initial mixing shall be discarded. Retempering of DynoBond used for bonding or finish coat cement applications is not permitted.