Graigaur was a 7,047 GRT cargo ship that was built in 1941 by Swan, Hunter & Wigham Richardson Ltd, Newcastle upon Tyne, Northumberland, United Kingdom, as the CAM ship Empire Foam for the Ministry of War Transport (MoWT).

She was sold to the Great Southern Steamship Co Ltd., Hong Kong in 1958 and renamed Johore Bahru, serving until she was scrapped in 1963.

The engine was built by Swan Hunter & Wigham Richardson Ltd.[1] It drove a single screw propeller.

[2] The ship was built in 1941 by Swan, Hunter & Wigham Richardson Ltd, Newcastle upon Tyne, Northumberland, United Kingdom.

The Code Letters BCKC andUnited Kingdom Official Number 165810 were allocated.

Empire Foam was operated under the management of F Carrick & Co. Ltd.[1] Empire Foam made her maiden voyage on 10 June 1941, when she sailed from the River Tyne to join Convoy EC 30,[4] which had departed from Southend, Essex on 7 June and arrived at the Clyde on 14 June.

She departed on 31 August for Sydney, Cape Breton Island, Nova Scotia, where she arrived the next day.

[4] Carrying a cargo of grain, she returned with Convoy HX 156, which departed on 22 October.

[11] On 1 November 1941, her Hawker Sea Hurricane was launched to intercept a Focke-Wulf Fw 200 aircraft, which it chased off.

[26] Empire Foam sailed from Liverpool on 15 January 1943, arriving at the Clyde two days later.

She was carrying explosives bound for Algiers,[31] which was reached via Convoy KMS 22, which sailed that day and arrived at Port Said, Egypt, on 20 August.

[34] She then sailed to Takoradi, Gold Coast, from where she departed on 20 October for Lagos, Nigeria, arriving two days later.

[4] She then joined Convoy FS 1316, which departed from Methil that day and arrived at Southend on 1 January 1944.

[4] Empire Foam subsequently sailed to Liverpool,[4] from where she departed with Convoy OS77KM on 14 May.

[4] Empire Foam sailed from Hull on 10 September and joined Convoy FN 1505 at Spurn Head.

[4] The convoy had departed from Southend the previous day and arrived at Methil on 11 September.

[51] She then joined Convoy EN 445, which sailed that day and arrived at Loch Ewe on 13 September.

[53] She then joined Convoy XB 134, which sailed that day and arrived at Boston on 17 November.

[54] She left the convoy at the Cape Cod Canal and arrived at Philadelphia, Pennsylvania, on 18 November.

[4] Empire Foam sailed from Middlesbrough on 8 February for the River Tyne, arriving later that day.

Empire Foam was carrying general cargo and was bound for Calcutta, India.

[59] Empire Foam sailed past Gibraltar and reached Calcutta on 26 April via Port Said, Suez, Egypt, Aden and Colombo, Ceylon.

[4] Empire Foam subsequently sailed to Rangoon, Burma, where she arrived on 21 May.

[3][60] During the Suez Crisis, Graigaur made a voyage from Tilbury, Essex, to the Mediterranean.

She was sold in 1958 to Great Southern Steamship Co Ltd, Hong Kong and renamed Johore Bahru.

She was in service until 1963, arriving at Kure, Japan, on 24 July 1963 for scrapping,[3] which was done by Osaka Kogai KK, Etajima.