http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 14.17Change: 0.04
R/$ = 10.69Change: 0.01
Au 1281.11 $/ozChange: 2.07
Pt 1422.00 $/ozChange: 6.50
 
 
Note: Search is limited to the most recent 250 articles. Set date range to access earlier articles.
Where? With... When?








Start
 
End
 
 
And must exclude these words...
Close Main Search
Close Main Login
My Profile News Alerts Newsletters Logout Close Main Profile
 
Agriculture   Automotive   Chemicals   Competition Policy   Construction   Defence   Economy   Electricity   Energy   Environment   ICT   Metals   Mining   Science and Technology   Services   Trade   Transport & Logistics   Water  
What's On Press Office Tenders Suppliers Directory Research Jobs Announcements Contact Us
 
 
 
RSS Feed
Article   Comments   Other News   Research   Magazine  
 
 
Aug 10, 2012

Solid adhesives benefit industry

Back
Engineering|Cleaning|Components|Flow|Industrial|System|Cleaning|Equipment|Flow|Oil|Ken Harvill
Engineering|Cleaning|Components|Flow|Industrial|System|Cleaning|Equipment|Flow||
engineering|cleaning-company|components|flow-company|industrial|system|cleaning|equipment|flow-industry-term|oil|ken-harvill
© Reuse this



Several advantages exist when using preformed adhesive epoxies instead of liquid adhesives, manufacturer of adhesive preforms Multi-Seals technical support manager Ken Harvill tells Engineering News.

He states that the biggest advantage of using preformed adhesives is that solid preforms remain so until they are heated, enabling epoxy to flow consistently onto the desired component, whereas liquid adhesives typically drip and dispense inconsistently onto unwanted areas of a component.

Multi-Seals’ US-manufactured Uni-form and Poly-form adhesive seals were both developed as alternatives to liquid adhesives.

The Uni-form is a one-part epoxy resin that is solid at room temperature. When heated, it melts and cures, forming a consistent seal to protect components from dust, moisture, oil, flux, industrial cleaning solvents, conformal coatings and other contaminants.

Meanwhile, the Poly-form is flexible before curing, which allows the manufacturer to produce larger and thinner adhesive configurations, says Harvill.

He notes other advantages of preforms are that they are premixed and have a consistent viscosity.

“This is because of a predetermined catalyst-to-resin ratio that produces a complete one-component system, resulting in predictable and consistent results, compared with variable mixed and metered liquid epoxy performance,” he explains.

Further, the viscosity of preforms remains consistent from seal to seal and batch to batch, whereas liquid epoxy continues to polymerise as it is dispensed, causing equipment clogs and variations in viscosity and seal quality.

The rapid manual and automated dispensing abilities of solid adhesives far exceed those of manually dispensed liquids, states Harvill.

Multi-Seals’ Uni-form adhesive, in particular, is well suited to a variety of automatic or semiautomatic sealing equipment dispensers such as templates, pick-and-place and bowl-fed gravity track methods.

Further, the solid adhesive enables simple cleanup.

Preform residue is easily swept up, while handling equipment needs to be wiped down only once or twice a week, says Harvill.

In comparison, liquid epoxy usually requires extensive cleanup procedures.

Edited by: Chanel de Bruyn
© Reuse this Comment Guidelines (150 word limit)
 
 
 
 
 
 
 
 
Other Seals, Gaskets and Sealing Mechanisms News
IMPROVING RELIABILITY The PFR-throat bushing restored the gland seal to specification in the wastewater pump
Mechanical seals company Aesseal has supplied a specialised PFR-throat bushing to restore the gland seal to specification in a wastewater pump serving the Umhlatuzana Inlet sewage pumpstation (SPS), in Durban. The bushing fitting forms part of eThekwini Water and...
INCREASED PRODUCTION The Seal Maker SML 500e machine can produce more than 180 standardised seals
South Africa-based bearing supplier Bearing Man Group (BMG), which will celebrate its fortieth anniversary this year, will host the first BMG Expo next month. This industrial productivity exhibition will be held at the BMG Park, in Johannesburg, from September 18 to...
LASTING SUCCESS EagleBurgmann mechanical slurry seals have been in use uninterruptedly for more than two years
Sealing solutions company EagleBurgmann Seals South Africa (SA) has registered a 20-fold increase in sales for its slurry application mechanical seals in the past two years and aims to increase its sales by another 25% this year, says EagleBurgmann Seals SA...
More
 
 
Latest News
Sacci CEO Neren Rau
The South African Chamber of Commerce and Industry (Sacci) would work with the office of the Afican National Congress (ANC) secretary-general Gwede Mathashe on a series of constructive engagements on improving the domestic economic climate and building a more...
JSE-listed investment and empowerment group Grand Parade Investments (GPI) and electronics contract manufacturer Tellumat have teamed up to create a 51:49 joint venture company Grand Tellumat Manufacturing. The transaction would see the engineering skills and...
JSE-listed property group Redefine Properties on Friday said its acquisition of all the assets and the property portfolio of Fountainhead Property Trust, had not been approved by the requisite majority of Fountainhead unitholders and would, therefore, not be...
More
 
 
Recent Research Reports
Road and Rail 2014: A review of South Africa's road and rail infrastructure (PDF report)
Creamer Media’s Road and Rail 2014 report examines South Africa’s road and rail transport system, with particular focus on the size and state of the country’s road and rail network, the funding and maintenance of these respective networks, and the push to move...
Real Economy Year Book 2014 (PDF Report)
This edition drills down into the performance and outlook for a variety of sectors, including automotive, construction, electricity, transport, steel, water, coal, gold, iron-ore and platinum.
Real Economy Insight: Automotive 2014 (PDF Report)
This four-page brief covers key developments in the automotive industry over the past 12 months, including an overview of South Africa’s automotive market, trade figures, production and the policies influencing the sector.
Real Economy Insight: Construction 2014 (PDF Report)
This five-page brief covers key developments in the construction industry over the past 12 months. It provides an overview of the sector and includes details of employment in the sector, infrastructure and municipal spending, as well as insight into companies’...
Real Economy Insight: Electricity 2014 (PDF Report)
This five-page brief covers key developments in the electricity industry over the past 12 months, including details of State-owned power utility Eskom’s generation activities, funding and tariffs, independent power producers and prospects for the sector.
Real Economy Insight: Road and Rail 2014 (PDF Report)
This six-page brief covers key developments in the road and rail industries over the past 12 months, including details of South Africa’s road and rail network and prospects for both sectors.
 
 
 
 
 
This Week's Magazine
MODDERFONTEIN NEW CITY Modderfontein New City will aim to exemplify an integrated city node and improve infrastructure utilisation through mixed-use spaces
The multibillion-rand development of the Zendai Modderfontein New City, east of Johannesburg, will aim to exemplify an integrated city node, says property group Zendai South Africa COO Wenhui Du. The development will focus on the Modderfontein Gautrain station to be...
The South African Civil Aviation Authority (CAA) hopes to have finalised regulations for the flying of Unmanned Air Vehicles (UAVs) – also designated Remotely Piloted Air Systems (RPAS) and popularly called drones – in the country’s civilian airspace by the end...
Various stakeholders have expressed optimism that the Small Business Development Ministry, created after the national elections in May, will add much needed impetus to enterprise development in South Africa, where a strengthening of the entrepreneurial culture is...
BOB SCHOLES To ensure that emissions plateau by 2020 and then decline until a net negative emission level is achieved by the end of the century, CO2 capture and storage in addition to major emission reduction efforts will be needed
Capturing and storing carbon dioxide (CO2) is the only way through which the world will achieve the lowest of the United Nations Framework Convention on Climate Change’s (UNFCCC) global warming predictions, called the representative concentration pathway (RCP) 2.6....
PARKS TAU Ongoing investigations had identified at least 30 large power users in Johannesburg as having defrauded the city
The City of Johannesburg has recovered R107-million following the arrest of 22 people allegedly involved in corruption, collusion, fraud and tampering with the city’s electricity systems, which had ultimately cost the city R200-million in lost revenue.
 
 
 
 
 
 
 
 
 
Alert Close
Embed Code Close
content
Research Reports Close
Research Reports are a product of the
Research Channel Africa. Reports can be bought individually or you can gain full access to all reports as part of a Research Channel Africa subscription.
Find Out More Buy Report
 
 
Close
Engineering News
Completely Re-Engineered
Experience it now. Click here
*website to launch in a few weeks