Big Dog Adhesives BD404 Structural Methacrylate Adhesive

Chemical Family: Methacrylates

BD404 is a two-part methacrylate, low exotherm, high flexural, structural bonding adhesive designed for the structural bonding of various substrates, including fiberglass, various metals, steel, aluminum, and various plastics (not low energy surfaces). Combined at a ratio of 2:1, BD404 has a working time of 3 to 6 minutes and achieves nearly 90 percent of its ultimate strength in 10 to 15 minutes at room temperature curing. BD404 provides high strength bonds to the above reference surfaces with generally no preparation effort, yet BD404 has very high elongation and flexibility. BD404 bonds very strongly to steel, stainless steel, and aluminum metals. BD404 adhesives are not UV stable, and will yellow over time and must not be used to create imperceptible seams in countertops or for seaming countertops. This yellowing will not affect bond performance, but will affect bond appearance.

Properties

Uncured Physical Properties: Mixer Recommendation Cartridge (225ml) : NCQ 08-24T – Square 24 element. Red/Clear Mix Tips C-Style Hub

Product families

Applications

Building & Construction — Building Materials

Structural Components

Product Families

Ready-to-Use Products — Adhesives & Sealants

Structural Adhesives

Other characteristics

Cure Method: Air Dry
Product Type: 2K (2 component) Adhesive
Compatible Substrates & Surfaces: Aluminum, Fiberglass, Metal, Plastics, Stainless Steel, Steel
Markets: Building & Construction
Shelf LIfe: 12 Months. The shelf life of BD404 is twelve (12) months from the date of manufacture based upon continuous storage at room temperature (77°F or 25°C). Storage of BD404 adhesives in refrigerated compartments will extend the shelf life even more. Do not store BD404 adhesive or any other adhesives in a refrigerator which has food or lunch products in them. Be sure to bring BD404 adhesives to room temperature for 24 hours before use, otherwise longer cure and fixture times may be expected. Long-term storage at temperatures above room temperature will shorten the shelf life of BD404 adhesives considerably. Storage at temperatures above 100°F or 38°C could shorten the shelf life to less than one month. BD404 adhesives contain no water, so freezing of the adhesive for short periods is permissible, but is not encouraged.
Cure: Air Dry
Technology: Ready-to-Use Products
Chemical Resistance: Excellent Resistance to :
Hydrocarbons
Acids and Bases
Vinegar
Wine and Condiments
Most Household Foods
Susceptible to :
Polar Solvents
Chemical Inventories: DSL (Canada)
TSCA (USA)
Certifications and Compliance: ISO 9001
Safety and Health Precautions: BD404 resin (Part A) and activator (Part B) are flammable. Contents include Methacrylate ester and acids. Keep containers closed after use. Wear gloves and safety glasses to avoid skin and eye contact. Wash with soap and water after skin contact. In case of eye contact, flush with water for 15 minutes and get medical attention. Harmful if swallowed. Keep out of the reach of children. Keep away from heat, sparks, and open flames. Do not smoke cigarettes or anything else while handling or near the product. Refer to the BD404 Safety Data Sheet for more complete safety instruction.
Ready to Use Product Features: Acid Resistant
Alkali Resistant
Chemical Resistant
Excellent Food Resistance
Flexible
Good Bonding Strength
High Flexural Modulus
High Strength
Compatible Substrates and Surfaces: Aluminum
Fiberglass
Metal
Plastics
Stainless Steel
Steel

Technical data

Table 1 of 5

3 rows

Characteristic	Value	Unit
Viscosity (Uncured)	140,000 - 200,000	cps
Density (Uncured)	8.2	lbs/gal
Mix Ratio (wt or vol, Uncured)	2	—

Table 2 of 5

4 rows

Characteristic	Value	Unit	Method
Tensile Strength (Fiberglass Surfaces)	min. 2,500	psi	ASTM D638
Tensile Strength (ABS/PVC Sheeting)	min. 1,000	psi	ASTM D638
Tensile Strength (Steel/Stainless Steel)	2,500 - 3,500	psi	ASTM D638
Tensile Strength (Aluminum)	2,500 - 3,500	psi	ASTM D638

Table 3 of 5