Dowsil 734 Flowable Adhesive Sealant — Clear, 90ml Tube

Dowsil 734 Flowable Adhesive Sealant — Clear, 90ml Tube

What Is Dowsil 734 Flowable Adhesive Sealant?

Dowsil 734 Flowable Adhesive Sealant — also known as Dow Corning 734, and widely referred to as a flowable RTV silicone sealant, self-leveling silicone adhesive, or MIL-A-46106 silicone sealant — is a one-part, room-temperature-vulcanising (RTV) silicone adhesive sealant by Dow Corning, formulated to flow and self-level into fine joints, cable entries, and connector assemblies to form a durable, watertight seal. Unlike non-flowable RTV sealants that must be tooled into place, Dowsil 734’s flowable consistency makes it the preferred choice for general industrial sealing and bonding applications where the sealant needs to settle evenly into tight or irregular gaps without manual shaping.

Curing through an acetoxy system on exposure to atmospheric moisture, Dowsil 734 skins over in approximately 7 minutes and reaches a tack-free surface within 13 minutes at room temperature and 50% relative humidity, curing to a tough, flexible rubber that remains stable from -65°C (-85°F) to +180°C (+356°F). Its good adhesion to other silicone rubbers makes it especially well suited for field repairs on existing equipment where a section of silicone encapsulant has been removed, while its excellent dielectric properties support use in electrical and electronic sealing applications. Complying with MIL-A-46106, Dowsil 734 is available in a 90ml tube and 310ml cartridge from Maisam Trading LLC, the authorised Dowsil supplier in Dubai, with stock available for prompt delivery across the UAE, Saudi Arabia, Qatar, Oman, Kuwait, and Bahrain.

Description

Dowsil 734 Flowable Adhesive Sealant is the benchmark one-part flowable RTV silicone sealant for general industrial sealing and bonding applications, available from Maisam Trading LLC Dubai in a 90ml tube. The clear, flowable liquid (viscosity 45,000 mPa.s at 25°C) is applied directly to the joint or gap, where it self-levels to ensure complete, uniform coverage — a key advantage over paste-type sealants in applications such as fine joint sealing, cable entries, and connector potting where consistent watertight coverage is critical.

On exposure to atmospheric moisture, the material skins over in about 7 minutes at room temperature and 50% relative humidity, so tooling should be completed before the skin forms. Cure then continues inward from the surface, reaching a depth of approximately 3mm within 24 hours under the same conditions; very deep sections, or applications where access to atmospheric moisture is restricted, will take longer to cure fully, and cure time extends at lower humidity. The cured elastomer has a tensile strength of 1.5 MPa, elongation at break of 315%, and Shore A durometer hardness of 27, remaining stable and flexible from -65°C to +180°C. Unprimed adhesion is achieved on many substrates including glass, metals, and most common engineering plastics; substrates such as PTFE, polyethylene, and polypropylene typically do not achieve good adhesion without primer. For maximum adhesion on demanding substrates, use of a compatible silicone primer is recommended. Note that Dowsil 734 releases a small amount of acetic acid during cure, which may cause corrosion on some metallic parts, particularly in enclosed configurations that restrict escape of cure by-products; this product is not tested or represented as suitable for medical or pharmaceutical use. As a trusted Dowsil 734 supplier in Dubai and across the GCC, Maisam Trading LLC provides prompt delivery and B2B supply to industrial customers across UAE, Saudi Arabia, Qatar, Oman, Kuwait, and Bahrain.

Features & Benefits

• One-part adhesive/sealant — no mixing required
• Cures at room temperature when exposed to moisture in the air
• Acetoxy cure system
• Flowable and self-leveling — ensures uniform coverage in fine joints and gaps
• Easy to apply
• Cures to a tough, flexible rubber
• Fast tack-free time — 13 minutes at 25°C
• Good adhesion to many substrates
• Stable and flexible from -65°C to +180°C
• Excellent dielectric properties — suited to electrical/electronic applications
• Complies with MIL-A-46106

Applications

• General industrial sealing and bonding applications requiring a flowable product
• Sealing assemblies with fine joints
• Cable entries and connectors requiring a watertight seal
• Field repairs on existing equipment where silicone encapsulant has been removed
• Electrical and electronic component sealing and potting

Industries Served

• Electronics & Electrical Manufacturing
• Industrial Manufacturing & Maintenance
• Telecommunications & Data Communications
• Aerospace & Defence
• Oil & Gas Instrumentation
• Marine & Offshore

Why Buy from MAISAM TRADING LLC?

• 18+ years of experience supplying Dowsil and Dow Corning silicone products across the GCC
• Available in 90ml tube and 310ml cartridge
• Dedicated B2B support and technical guidance
• Prompt delivery and export solutions across UAE, Saudi Arabia, Qatar, Oman, Kuwait & Bahrain
• Verified stock of original Dowsil (Dow Corning) products
• Call: +971521672252 | Email: sales@maisamdubai.com

Technical Specifications

FAQs

Q1: What is Dowsil 734 used for?
Dowsil 734 is a one-part flowable RTV silicone adhesive sealant used for general industrial sealing and bonding, particularly for fine joints, cable entries, and connectors requiring a watertight seal, and for field repairs on existing silicone encapsulants.

Q2: Does Dowsil 734 require mixing?
No. It is a one-part system that cures at room temperature through moisture in the air — no mixing or curing ovens are required.

Q3: How long does Dowsil 734 take to cure?
It skins over in about 7 minutes and reaches tack-free in approximately 13 minutes at 25°C and 50% relative humidity. Cure then continues inward, reaching about 3mm depth within 24 hours; deeper sections take longer, and cure time extends at lower humidity.

Q4: What is the service temperature range?
The cured elastomer remains stable and flexible from -65°C (-85°F) to +180°C (+356°F).

Q5: What makes Dowsil 734 different from non-flowable RTV sealants?
Its flowable, self-leveling formulation allows it to settle evenly into fine joints and irregular gaps without manual tooling, making it especially suited to cable entry and connector sealing where consistent watertight coverage is required.

Q6: What substrates does Dowsil 734 bond to without primer?
Unprimed adhesion is typically achieved on glass, metals, and most common engineering plastics. Substrates such as PTFE, polyethylene, and polypropylene generally require primer or surface treatment.

Q7: Is Dowsil 734 suitable for electrical and electronic applications?
Yes. It offers excellent dielectric properties, including a dielectric strength of 17 kV/mm and volume resistivity of 1×10¹⁵ Ohm.cm, making it suitable for electrical and electronic sealing applications.

Q8: Does Dowsil 734 cause corrosion on metal parts?
It releases a small amount of acetic acid during cure, which may cause corrosion on some metallic substrates, particularly in enclosed configurations. This should be considered before use on sensitive metal assemblies.

Q9: What pack sizes are available?
Dowsil 734 is available in a 90ml tube and a 310ml cartridge from Maisam Trading LLC.

Q10: Where can I buy Dowsil 734 in the UAE or GCC?
Maisam Trading LLC is a trusted Dowsil supplier in Dubai. Contact +971521672252 or email sales@maisamdubai.com. We supply across UAE, Saudi Arabia, Qatar, Oman, Kuwait, and Bahrain.

Availability & Support

Dowsil 734 Flowable Adhesive Sealant Clear 90ml is available across Dubai and all major GCC electronics, industrial, and maintenance supply networks through Maisam Trading LLC.

Call / WhatsApp: +971521672252
Email: sales@maisamdubai.com for quotes, TDS, SDS, or bulk order pricing