Does a PCB expand the same way in every direction?

Preview text: How Does Your PCB Handle Heat? Learn More! 96 We measured one board in three directions…

CovalentThursday, Oct 8, 2026 at 4:31 PM EasternHubSpot
CovalentDoes a PCB expand the same way in every direction?
Subject
Does a PCB expand the same way in every direction?
Preview text
How Does Your PCB Handle Heat? Learn More! 96 We measured one board in three directions…
From
marketing@covalent.com
Sent
Thu Oct 8, 2026, 4:31 PM ET
Sent to
academy.covalentmetrology.com
Size
44 KB
Images
7
Links
6, 2 of them buttons
Subject length
50 characters

Against Covalent's usual

Sent in the 4 PM hour, which holds 6% of its emails; 47% arrive in the 1 PM hour. The subject is 50 characters; its average is 58.

Email headers

What the brand's servers put on this email. Our receiving servers, the address we subscribed with and unsubscribe links are left out.

From
Covalent <[email protected]>
Subject
Does a PCB expand the same way in every direction?
Date
Thu, 8 Oct 2026 13:31:30 -0700
Message-ID domain
bf03.hubspotemail.net
Return-Path domain
bf03.hubspotemail.net
DKIM signature
d=bf03.hubspotemail.net s=hs2; d=covalent.com s=hs2-20894734
List-Unsubscribe
Present, one-click
Feedback-ID sender
HubSpot

Other sending headers (names only): X-HS-Cid, X-Report-Abuse-To

Report this email

Sent just before and after

More from Covalent

All Covalent emails

Sent the same day by similar brands

Same ESP and the closest weekly volume, sent on Oct 8, 2026.

Get the Black Friday insights

We're collecting every Black Friday email from more than 50,000 brands as it lands. Get what we find: who starts first, the biggest discounts, and the subject lines that stand out.

Free. You'll get a confirmation email first, and you can unsubscribe anytime.